US2931005A - Bulb socket assembly - Google Patents
Bulb socket assembly Download PDFInfo
- Publication number
- US2931005A US2931005A US456807A US45680754A US2931005A US 2931005 A US2931005 A US 2931005A US 456807 A US456807 A US 456807A US 45680754 A US45680754 A US 45680754A US 2931005 A US2931005 A US 2931005A
- Authority
- US
- United States
- Prior art keywords
- flashlight
- bulb
- switch
- filament
- socket
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
Definitions
- This invention relates to a flashlight switch assembly, and more particularly concerns a switch for a flashlight having a two filament bulb for spotlight and floodlight operation.
- a dual purpose flashlight that is, a flashlight adapted to receive a two filament flashlight bulb so as to be suitable for use as either a spotlight or a floodlight
- a suitable switch which can be used to convert the flashlight to either spotlight or floodlight operation.
- Principal features that are desirable in a spotlight-floodlight type flashlight are prevention of short circuiting of the ,bulb filament elements, effective and easily manipulated flash and steady light switch controls and incorporation of the switch parts within a conventionally appearing flashlight assembly without altering to any perceptible degree the compactness and shape of the flashlight.
- Another object of the invention is to provide in a flashlight having a two filament flashlight bulb, a novel flashlight bulb socket holder and switch selector means for selectively establishing electrical contact with each of the bulb filaments, whereby the flashlight may be operated as a floodlight or spotlight.
- Fig. 1 is a sectional elevational view of a flashlight casing embodying the inventiomand illustrating the flashlight in spotlight operation;
- Fig. 2 is an enlarged portion of the section shown in Fig. 1, illustrating important features of the switch mechanism and illustrating the switch mechanism in floodlight operation;
- Fig. 3 is an exploded view of the movable switch parts inside the flashlight casing
- Fig. 4 is an exploded view of the bulb socket assembly of the invention.
- Fig. 5 is a sectional view of the slide button switch assembly taken along the line 5-5 in Fig. 2, and showing underlying parts.
- the flashlight 10 comprises a tubular casing or housing 12 made of thin gage metal such as chrome-plated steel or brass or other similarly conductive material, preferably a metal capable of being finished to ahighly polished state.
- a conventional head assembly 14 provided at the upper end of the casing 12' includes an internally threaded closure member 16 adapted to be received on a correspondingly threaded portion 17 of the casing, a lens 18, and a plastic funnel-shaped reflector member 19 having a parabolic reflector 20 provided with a mirror finish and a hollow cylindrical externally threaded neck portion 22.
- the closure member 16 may be made entirely of resinous material or may comprise a threaded metal ring 16a carried by a resinous body 16b.
- An opening 24 in the reflector 20 communicates with the inside cylindrical surface 26 of the neck 22.
- the flashlight may be operated as a spotlight or a fioodlight.
- the holder assembly 32 of the present invention comprises a metallic cylindrical shell 34 having a body portion 3'6 threaded so that it may be received on the externally threaded portion of the neck 22, and an annular base flange 37 at one end of the shell body (see Fig. 4).
- a metallic tubular socket member 38 Disposed concentrically of the shell body 36 is a metallic tubular socket member 38 which extends inside the hollow of the neck 22 and terminates just short of the reflector shoulder 27.
- This socket 38 is constructed to loosely receive therein the base 39 of the bulb 29.
- An open ended slot 40 in which the common terminal 42 of the two-filament bulb 29 reciprocatingly moves prevents rotation of the bulb relative to the socket 38.
- the socket 38 is predeterminedly spaced from the shoulder 27 by means of an annular flange 44 which seats against the end of the neck 22 and also contacts the shell flange 37.
- Each of these spacers 49 and 50 is constructed with the same inside diameter, which is slightly larger than the inside diameter of the socket flange 37, but approximately the same diameter as the inside diameter of the neck surface Integral with each of the filament contacting disks-46 and 47 is a flexibly resilient filament contacting tab 52 and 54 respectively, which extends generally radially inwardly and is angled in the direction of the bulb filament terminals 56 and 57 located at the bottom of the flashlight bulb base 39 to effect contact therewith.
- the free ends of the tabs 52 and 54 are disposed in predetermined spaced relation to each other, and in non-registering alignment so that each tab may contact only one filament ter- I minal and each tab may simultaneously contact respectively its filament terminal.
- a disk 58 In face contact with the annular insulator 50 is a disk 58 comprising a flat, annular margin 59 disposed in adjacency with the insulator 50, and a crown portion 60 offset from the plane of the margin 59 and formed to provide a seat 62 for receiving the cell cap of the battery 11a.
- Means are provided for avoiding rotational and sliding movement of the disk contactors 46 and- 47 relative to the insulators 48, 49 and 50, since such movement tends to throw the, flexible tabs 52 and, 54 out of'registry with their respective bulb filament terminals 56 and 57, acts to break the continuity of the flashlight circuit, and causes short circuits.
- the contacting disks, 46 and 47 and the, insulator 48 are interlocked byproviding the insulator 48 with a suitable plurality-of studs or projections 64 in one face thereof, the studs extending through registering openings 66 in the contactor disk 46 and terminating flush with the marginal surface thereof.
- Similar studs 67 are provided in the opposite face of, the insulator 48 for registration in like manner with openings 68 provided in the contacting disk 47. Additional openings 69 in each of the disks46 and 47 may be provided, see Fig. 4, so that the disks'may be made in duplicate and used interchangeably.
- the studs 64 and 67 may be disposed in any spaced pattern thatmay be desired, two being shown in each face of the insulator 48 in-the illustrated embodiment, al-
- Retention of the socket holder assembly parts in assembled relation is accomplished by fastening the shell 34, the tubular socket flange 44, the disks 46 and 47, the insulating spacers 48, 49 and 50, and the cell cap contacting disk 58 together, as by riveting, by providing in each member registering rivet openings 70 and 72 for the passage therethrough of metallic fastening rivets 74.
- the rivet openings 70 in the filament contacting disks 46 and 47 are enlarged so that rivet contact is avoided, the studs 64 and 67 acting to retain the rivets concentrically in the openings 70.
- Locator holes 73 may be provided in each of the socket holder assembly parts to facilitate assembling such parts. For illustration purposes, these locator holes 73 are shown in Fig. 4 disposed in alternate manner with either openings 70 or 72 as the case maybe. In assembly, these openings 73 present a pair of aligned apertures in the flanges of the parts constituting the socket holder assembly 32.
- the bulb 29 is first inserted in the socket 38 so that the common filament terminal 42 fits in the guide slot 40. In this position, the bulb 29 is resiliently supported in the socket 38 by the tabs 52 and 54, and at the same time, the bulb terminals 56 and 57 are in respective engagement with the tabs 52 and 54.
- the socket holder assembly 32 is then moved upwardly with respect to the head assembly 14 until the bulb flange 28 abutsthe shoulder 27 of the reflector 19 when the shell 34 is threaded onto the externally threaded portion of the neck 22 and the socket flange 44 engages the base of the neck 22. In this position the socket holder assembly 32 is fixedly mounted with respect to the head assembly 14 and the flashlight casing 12.
- the insulators 48, 49 and 50 extend beyond the shell flange 37 and the socket flange 44, and the filament contacting disks 46 and 47 in turn extend beyond the insulators 48, 49 and 50.
- the disks are in a position to be contacted by the switch mechanism to be described hereafter.
- both filaments in the bulb 29 have a common terminal 42 contactively engaging the socket 40, which in turn makes contact with the shell flange 37.
- the shell flange 37 makes electrical contact with the cell cap contactor disk 58 through metallic rivets 74.
- the cell cap contactor disk 58 makes direct electrical contact with the cell cap terminal of the battery 11a.
- a metallic helical spring member 75 provides sufficient bias to insure a continuous electrical path through the flashlight batteries, and serves as a pathway to ground, as it is in electrical contact with the flashlight casing wall 12.
- the other end of each of the filaments that is, filament terminals'56' and 57, engages respective filament contactor disks 46 and 47 through the resilient tabs 52 and 54.
- a switching mechanism 100 selective completion of the electrical circuit from one or the other of the filament contacting disks 52 and 54 may be accomplished by means of a switching mechanism 100.
- the switch device 100 comprises a strip contactor 102 (Fig. 3) made of thin gage, electrically conductive material such as bronze, having an elongated rectangular body section 104 possessing resilient characteristics and an elongated flexibly resilient extension section 106. Referring to Figs. '2 and,3, the
- rectangular body section 104 is arranged inside the flashlight casing between the flashlight wall 12 and the batteries 11a: and 1111, so that the extension 106 projects toward the cap end of the flashlight with its terminal portion dis-posed in the casing clearance alongside the bulb socket holder assembly 32.
- the portion of the extension 106 adjacent the free end thereof is offset sufiiciently to contact either of said disks by angularly be'nding it to form convergent flexing portions 108 and 110 terminating in a curved nose contacting, portion 112.
- the nose 112 does-not extend inwardly to such an extent as to interfere with the removal or insertion of the flashlight batteries.
- a metal stop plate 114 Permanently attached to the strip contactor 102 and arranged adjacent the inside of the casing wall 12 is a metal stop plate 114 which is insulated from the strip contactor 102 by a strip of insulation material 116 disposed therebetween. Securement of the strip contactor, stop plate and insulator strip is accomplished by providing in opposed longitudinal edges of the body section 104, pairs of notches or cut-away areas 118 and 120 adapted to receive therein pairs of underturned tongues 122 and 124 integral with the insulator strip 116, and pairs of tongues 126 and 128 struck out from the body of the stop plate 114. As illustratedin the exploded view shown in Fig.
- the tongues 126 and 128 straddle the tongues 122 and 124, and pass through notches 130 and 132 defined in opposite longitudinal edges of the insulator strip by the insulator tongues 122 and 124. Further securement of the strip contactor 102, stop plate 114 and insulator strip 116 is provided by underturning the terminal portions 134 and 136' respectively of the insulator strip and the stop plate so as to embrace the underside of the extension 106. With the aforesaid construction there is little likelihood of any member catching on the switch construction and deranging same, as for instance when removing or inserting a battery.
- the notches are constructed slightly larger than the tongues. Movement of the switch mechanism parts relative to each other maybe restricted substantially by providing registering openings 140 and 142 in the insulator 116 and the strip contactor 102, to receive theerthrough a depressed portion 144 pressed out from the body of the stop plate 114.
- the stop plate member 114 is constructed to be slidably movable in a longitudinal direction by providing a pair of spaced embossed annular sections 146 and 147 in the stop plate, which are loosely receivable in elongated enclosed slots 148 and 150 in the flashlight casing 12.
- the contactor strip 102, insulator strip 116 and the stop plate 114 are transversely curved to conform as closely as possibleto the curvature of the flashlight casing 12, so that the embossed areas 146 and 147 lie approximately flush with the outer surface of the flashlight casing.
- Each of the sections 146 and 147 is provided with a rivet receiving aperture 152 and 154 respectively therein.
- Actuation of the strip contactor into engagement with either of the filament disks 46 or 47 may be performed by manipulating a switch bar or switch housing 156 disposed outside and adjacent the casing 12.
- the switch mechanism parts inside the flashlight casing are adapted to be movably carried by the switch housing 156 by means of rivets 158 passing through rivet openings 160 and 152, 154, provided 'for this purpose in the switch housing and the embossed sections 146, 147 respectiv'ely.
- the rivet ends are outturned to fit within the recession defined-by'the raised sections 146, 147 to perrnanently secure the switch housing 156 to the stop piate 114.
- Enlarged openings 162 and 164 in the insulator strip and strip contactor respectively concentrically disposed with respect to the axis of rivet 158 prevent electrical contact between the rivet end and the strip contactor 102.
- the switch housing 156 together with the switch parts 102, 114 and 116 may be reciprocatingly slidingly moved as a unit relative to the casing 12, the extent of movement being determined by the amount of movement of the raised sections 146 and 147 in the elongated slots 148 and 150.
- a protective gasket 166 provided with suitable openings 167 to receive the rivets 158 is interposed between the casing and the switch housing.
- the slots 148 and 150 in the casing are of predetermined length so that the contactor strip 102 may be operatively moved into contact with either disk 46 or 47.
- the nose section 112 is in electrical contact with the disk 46.
- the circuit arrangement illustrated in Fig. 2 places the flashlight in floodlight operation, but this position may equally well be adapted for spotlight operation if so desired. Sliding movement of the switch housing 156 toward the rear end of the casing cams the nose 112 outwardly so that it rides over the disk 46. Continued movement of the housing in the same direction allows the nose to disengage itself from contact with the disk 46 into resilient engagement with the disk 47, see Fig. l, which corresponds in this instance to spotlight operation.
- the insulating spacer 48 is provided with a larger diameter than each of the insulating spacers 49 and 50, but slightly smaller diameter than the diameter of each of the filament contacting disks 46 and 47.
- the button switch comprises a button 174 and a button switch housing 176 having depending tongues 178 which are adapted to fit in corresponding enclosed slots 180 in the switch housing 156, thereby forming a tongue and slot connection.
- the button 174 is mounted for axial movement in an aperture 182 in the button housing.
- the said button is also adapted to pass through an opening 184 in the switch housing 156, and is held captive therein by an outwardly disposed button flange 186, which normally lies in the opening 184 and rests against the underside of the switch housing 156.
- Communicating with the opening 184 is an elongated track opening 188 having a width slightly less than the diameter of the button flange 186.
- A- spring strip 190 in resilient engagement with the flanged end 186 of the button 174 is secured at one end by a rivet 192 to the inside of the switch housing 156.
- the following means are provided for eflecting operation of the flashlight circuit.
- depression of the button 174 inwardly moves the free end of a spring arm 190, which spring arm is provided with a contacting tongue 191, and completes the flashlight circuit to ground by causing said tongue 191 to contact the strip contactor 102 through registering aper-.
- Steady light operation is obtained by first manually pressing the button to complete the flashlight circuit. This permits the button 174 to be manipulated longitudinally into the track opening 188 and prevents the spring 190 from breaking the circuit when the button 174 is released by reason of the opposition of the button flange 186 against the margin of the track.
- the button switch operates equally well when the switch housing 156 is in spotlight position or fioodlight position.
- a flashlight bulb socket assembly for a two filament bulb comprising a cylindrical shell, a bulb socket concentrically disposed in said shell, said shell and said socket having respectively an annular flange in axial alignment and in abutment with each other, a battery cell cap disk axially spaced from said flanges, a pair of rings each provided with an integral filament contacting tab disposed between said cell cap disk and socket, said rings being predeterminedly insulatingly spaced from each other and from said disk and said socket, and retention means passing through, said disk, rings and flanges and affording electrically conductive means between said disk and said flanges.
- said rings having an outer diameter slightly larger than the respective diameters of said flanges and said disk, whereby said rings are adapted for selectively engaging a contacting switch.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Description
March 29, 1960 A. s. SAURWEIN EI'AL BULB SOCKET ASSEMBLY m 2 W HM W w h. w M u I m .rll i Ill INVENTORS vALBERT G SAURWEIN RICHARD H. PARKER BY g W TTORNEY w W M W 6 II n 8 4 5 9 l 7. g 1 P e s d d m w v F March 29, 1960 A. s. SAURWEIN ETAL 2,931,005
BULB SOCKET ASSEMBLY 2 Sheets-Sheet 2 Filed Sept. 17. 1954 ORNEY United States Patent 2,931,005 BULB SOCKET ASSEMBLY Albert G. Saurwein and Richard H. Parker, St. Albans,
Vt., assignors to Union Carbide Corporation, a corporation of New York Application September 17, 1954, Serial No. 456,807 3 Claims. (Cl. 339-182) This invention relates to a flashlight switch assembly, and more particularly concerns a switch for a flashlight having a two filament bulb for spotlight and floodlight operation.
In a dual purpose flashlight, that is, a flashlight adapted to receive a two filament flashlight bulb so as to be suitable for use as either a spotlight or a floodlight, there is a problem of providing a suitable switch which can be used to convert the flashlight to either spotlight or floodlight operation. Principal features that are desirable in a spotlight-floodlight type flashlight are prevention of short circuiting of the ,bulb filament elements, effective and easily manipulated flash and steady light switch controls and incorporation of the switch parts within a conventionally appearing flashlight assembly without altering to any perceptible degree the compactness and shape of the flashlight.
It is, therefore, an important object of the present invention to provide a switch mechanism suitable for use in a flashlight of the spotlight-floodlight type.
Another object of the invention is to provide in a flashlight having a two filament flashlight bulb, a novel flashlight bulb socket holder and switch selector means for selectively establishing electrical contact with each of the bulb filaments, whereby the flashlight may be operated as a floodlight or spotlight.
In the drawings:
Fig. 1 is a sectional elevational view of a flashlight casing embodying the inventiomand illustrating the flashlight in spotlight operation;
Fig. 2 is an enlarged portion of the section shown in Fig. 1, illustrating important features of the switch mechanism and illustrating the switch mechanism in floodlight operation;
Fig. 3 is an exploded view of the movable switch parts inside the flashlight casing;
Fig. 4 is an exploded view of the bulb socket assembly of the invention; and
Fig. 5 is a sectional view of the slide button switch assembly taken along the line 5-5 in Fig. 2, and showing underlying parts.
Referring now to the drawings, there is disclosed a flashlight constructed in accordance with a preferred embodiment of our invention and adapted to receive therein conventional batteries 11a and 11b. The flashlight 10 comprises a tubular casing or housing 12 made of thin gage metal such as chrome-plated steel or brass or other similarly conductive material, preferably a metal capable of being finished to ahighly polished state.
A conventional head assembly 14 provided at the upper end of the casing 12' includes an internally threaded closure member 16 adapted to be received on a correspondingly threaded portion 17 of the casing, a lens 18, and a plastic funnel-shaped reflector member 19 having a parabolic reflector 20 provided with a mirror finish and a hollow cylindrical externally threaded neck portion 22. The closure member 16 may be made entirely of resinous material or may comprise a threaded metal ring 16a carried by a resinous body 16b. An opening 24 in the reflector 20 communicates with the inside cylindrical surface 26 of the neck 22. At juncture of the inner surface 26 and'the opening 24, there is provided an'abutment or shoulder'27 against which a bulb flange ice 28 of a two-filament flashlight bulb 29 may seat. Depending on which bulb filament is energized, the flashlight may be operated as a spotlight or a fioodlight.
As a feature of the present invention, novel means are afforded for receiving the two filament bulb 29 in a flashlight bulb socket holder assembly 32. Accordingly, the holder assembly 32 of the present invention comprises a metallic cylindrical shell 34 having a body portion 3'6 threaded so that it may be received on the externally threaded portion of the neck 22, and an annular base flange 37 at one end of the shell body (see Fig. 4).
Disposed concentrically of the shell body 36 is a metallic tubular socket member 38 which extends inside the hollow of the neck 22 and terminates just short of the reflector shoulder 27. This socket 38 is constructed to loosely receive therein the base 39 of the bulb 29. An open ended slot 40 in which the common terminal 42 of the two-filament bulb 29 reciprocatingly moves prevents rotation of the bulb relative to the socket 38. The socket 38 is predeterminedly spaced from the shoulder 27 by means of an annular flange 44 which seats against the end of the neck 22 and also contacts the shell flange 37.
Contact with the individual filaments of the hub 29 is consumated by means of flat, metallic, filament contacting annular disks or rings 46 and 47. These disks are insulatingly spaced from each other by means of an annular insulating spacer 48 of predetermined thickness. Straddling the filament contacting disks 46 and 47 is a pairof annular insulating spacers 49 and 50. Each of these spacers 49 and 50 is constructed with the same inside diameter, which is slightly larger than the inside diameter of the socket flange 37, but approximately the same diameter as the inside diameter of the neck surface Integral with each of the filament contacting disks-46 and 47 is a flexibly resilient filament contacting tab 52 and 54 respectively, which extends generally radially inwardly and is angled in the direction of the bulb filament terminals 56 and 57 located at the bottom of the flashlight bulb base 39 to effect contact therewith. The free ends of the tabs 52 and 54 are disposed in predetermined spaced relation to each other, and in non-registering alignment so that each tab may contact only one filament ter- I minal and each tab may simultaneously contact respectively its filament terminal.
In face contact with the annular insulator 50 is a disk 58 comprising a flat, annular margin 59 disposed in adjacency with the insulator 50, and a crown portion 60 offset from the plane of the margin 59 and formed to provide a seat 62 for receiving the cell cap of the battery 11a.
Means are provided for avoiding rotational and sliding movement of the disk contactors 46 and- 47 relative to the insulators 48, 49 and 50, since such movement tends to throw the, flexible tabs 52 and, 54 out of'registry with their respective bulb filament terminals 56 and 57, acts to break the continuity of the flashlight circuit, and causes short circuits. To this end, the contacting disks, 46 and 47 and the, insulator 48 are interlocked byproviding the insulator 48 with a suitable plurality-of studs or projections 64 in one face thereof, the studs extending through registering openings 66 in the contactor disk 46 and terminating flush with the marginal surface thereof. Similar studs 67, not necessarily aligned with studs 64, are provided in the opposite face of, the insulator 48 for registration in like manner with openings 68 provided in the contacting disk 47. Additional openings 69 in each of the disks46 and 47 may be provided, see Fig. 4, so that the disks'may be made in duplicate and used interchangeably. The studs 64 and 67 may be disposed in any spaced pattern thatmay be desired, two being shown in each face of the insulator 48 in-the illustrated embodiment, al-
' through a larger or smaller number may be used. Relative movement of the filament contacting disks 46 and 47 is thereby avoided because of the opposition of the studs 64 and 67 in the openings 66 and 68 respectively.
Retention of the socket holder assembly parts in assembled relation is accomplished by fastening the shell 34, the tubular socket flange 44, the disks 46 and 47, the insulating spacers 48, 49 and 50, and the cell cap contacting disk 58 together, as by riveting, by providing in each member registering rivet openings 70 and 72 for the passage therethrough of metallic fastening rivets 74.
For the purpose of providing electrical contact between the cell cap of the battery 11d and the base of the bulb 29, without short circuiting the bulb filament terminals 56 and 57, the rivet openings 70 in the filament contacting disks 46 and 47 are enlarged so that rivet contact is avoided, the studs 64 and 67 acting to retain the rivets concentrically in the openings 70.
In attaching the socket holder assembly 32 to the head assembly 14, the bulb 29 is first inserted in the socket 38 so that the common filament terminal 42 fits in the guide slot 40. In this position, the bulb 29 is resiliently supported in the socket 38 by the tabs 52 and 54, and at the same time, the bulb terminals 56 and 57 are in respective engagement with the tabs 52 and 54. The socket holder assembly 32 is then moved upwardly with respect to the head assembly 14 until the bulb flange 28 abutsthe shoulder 27 of the reflector 19 when the shell 34 is threaded onto the externally threaded portion of the neck 22 and the socket flange 44 engages the base of the neck 22. In this position the socket holder assembly 32 is fixedly mounted with respect to the head assembly 14 and the flashlight casing 12.
It will be noted from the drawings that in assembly the insulators 48, 49 and 50 extend beyond the shell flange 37 and the socket flange 44, and the filament contacting disks 46 and 47 in turn extend beyond the insulators 48, 49 and 50. By reason of the outward extension of the contacting disks 46 and 47, and their predetermined spacing, the disks are in a position to be contacted by the switch mechanism to be described hereafter.
It is to be pointed out at this stage that in the illustration shown in Fig. 1, both filaments in the bulb 29 have a common terminal 42 contactively engaging the socket 40, which in turn makes contact with the shell flange 37. The shell flange 37 makes electrical contact with the cell cap contactor disk 58 through metallic rivets 74. The cell cap contactor disk 58 makes direct electrical contact with the cell cap terminal of the battery 11a. A metallic helical spring member 75 provides sufficient bias to insure a continuous electrical path through the flashlight batteries, and serves as a pathway to ground, as it is in electrical contact with the flashlight casing wall 12. The other end of each of the filaments, that is, filament terminals'56' and 57, engages respective filament contactor disks 46 and 47 through the resilient tabs 52 and 54.
According to the present invention, selective completion of the electrical circuit from one or the other of the filament contacting disks 52 and 54 may be accomplished by means of a switching mechanism 100. For this purpose sufficient clearance is provided for the switch device between the flashlight casing 12 and the socket holder assembly 32 and batteries. The switch device 100 comprises a strip contactor 102 (Fig. 3) made of thin gage, electrically conductive material such as bronze, having an elongated rectangular body section 104 possessing resilient characteristics and an elongated flexibly resilient extension section 106. Referring to Figs. '2 and,3, the
To eflect contact with one or the other of the disks 52 and 54 of the holder assembly 32, the portion of the extension 106 adjacent the free end thereof is offset sufiiciently to contact either of said disks by angularly be'nding it to form convergent flexing portions 108 and 110 terminating in a curved nose contacting, portion 112. However, the nose 112 does-not extend inwardly to such an extent as to interfere with the removal or insertion of the flashlight batteries.
Permanently attached to the strip contactor 102 and arranged adjacent the inside of the casing wall 12 is a metal stop plate 114 which is insulated from the strip contactor 102 by a strip of insulation material 116 disposed therebetween. Securement of the strip contactor, stop plate and insulator strip is accomplished by providing in opposed longitudinal edges of the body section 104, pairs of notches or cut-away areas 118 and 120 adapted to receive therein pairs of underturned tongues 122 and 124 integral with the insulator strip 116, and pairs of tongues 126 and 128 struck out from the body of the stop plate 114. As illustratedin the exploded view shown in Fig. 3, the tongues 126 and 128 straddle the tongues 122 and 124, and pass through notches 130 and 132 defined in opposite longitudinal edges of the insulator strip by the insulator tongues 122 and 124. Further securement of the strip contactor 102, stop plate 114 and insulator strip 116 is provided by underturning the terminal portions 134 and 136' respectively of the insulator strip and the stop plate so as to embrace the underside of the extension 106. With the aforesaid construction there is little likelihood of any member catching on the switch construction and deranging same, as for instance when removing or inserting a battery.
Close tolerances between the notches 118 and 120 and the tongues 122, 124, .126 and 128, although desirable, are not necessary in the present invention. The notches are constructed slightly larger than the tongues. Movement of the switch mechanism parts relative to each other maybe restricted substantially by providing registering openings 140 and 142 in the insulator 116 and the strip contactor 102, to receive theerthrough a depressed portion 144 pressed out from the body of the stop plate 114.
Provision is made for limiting longitudinal movement of the switch mechanism 100 inside the flashlight casing. Accordingly, the stop plate member 114 is constructed to be slidably movable in a longitudinal direction by providing a pair of spaced embossed annular sections 146 and 147 in the stop plate, which are loosely receivable in elongated enclosed slots 148 and 150 in the flashlight casing 12. In assembly, the contactor strip 102, insulator strip 116 and the stop plate 114 are transversely curved to conform as closely as possibleto the curvature of the flashlight casing 12, so that the embossed areas 146 and 147 lie approximately flush with the outer surface of the flashlight casing. Each of the sections 146 and 147 is provided with a rivet receiving aperture 152 and 154 respectively therein.
Actuation of the strip contactor into engagement with either of the filament disks 46 or 47, may be performed by manipulating a switch bar or switch housing 156 disposed outside and adjacent the casing 12. The switch mechanism parts inside the flashlight casing are adapted to be movably carried by the switch housing 156 by means of rivets 158 passing through rivet openings 160 and 152, 154, provided 'for this purpose in the switch housing and the embossed sections 146, 147 respectiv'ely. The rivet ends are outturned to fit within the recession defined-by'the raised sections 146, 147 to perrnanently secure the switch housing 156 to the stop piate 114.
The slots 148 and 150 in the casing are of predetermined length so that the contactor strip 102 may be operatively moved into contact with either disk 46 or 47. As shown in Fig. 2, when the housing 156 is in the extreme forward position, the nose section 112 is in electrical contact with the disk 46. For illustration purposes, the circuit arrangement illustrated in Fig. 2 places the flashlight in floodlight operation, but this position may equally well be adapted for spotlight operation if so desired. Sliding movement of the switch housing 156 toward the rear end of the casing cams the nose 112 outwardly so that it rides over the disk 46. Continued movement of the housing in the same direction allows the nose to disengage itself from contact with the disk 46 into resilient engagement with the disk 47, see Fig. l, which corresponds in this instance to spotlight operation.
Suitable provision is made to maintain the nose contacting portion 112 of the contactor strip 102 in contact with only one of the filament contacting disks 46 and 47 at a time. Accordingly, the insulating spacer 48 is provided with a larger diameter than each of the insulating spacers 49 and 50, but slightly smaller diameter than the diameter of each of the filament contacting disks 46 and 47. By providing the insulating spacer 48 with a sufiiciently large and predetermined thickness, and at the same time forming the nose 112 of a sufiiciently small radius of curvature, only one disk contactor at a time may be engaged by said nose when said nose is moved from one switch position to another.
It is desirable to shorten the time interval during which both filaments are energized. This is accomplished in the present invention by providing an inwardly extending projection or detent 168 in the wall of the casing 12, and an opposed projection or ridge 170 in thestop plate 114. Thus, in changing from floodlight operation to spotlight operation, moderate actuating pressure must be applied to the switch housing 156 in order for the projection 168 to resiliently override the ridge 170. This causes the stop plate 114 and its associated switch part members to move relatively quickly from floodlight position into spotlight position, and as a consequence minimizes the time interval during which neither filament is lit.
Completion of the flashlight circuit is accomplished by means of a slide button switch 172 mounted on the housing 156.
The button switch comprises a button 174 and a button switch housing 176 having depending tongues 178 which are adapted to fit in corresponding enclosed slots 180 in the switch housing 156, thereby forming a tongue and slot connection. This allows the button housing 176 to be reciprocatingly and slidably moved relative to the switch housing 156. The button 174 is mounted for axial movement in an aperture 182 in the button housing. The said button is also adapted to pass through an opening 184 in the switch housing 156, and is held captive therein by an outwardly disposed button flange 186, which normally lies in the opening 184 and rests against the underside of the switch housing 156. Communicating with the opening 184 is an elongated track opening 188 having a width slightly less than the diameter of the button flange 186. p
A- spring strip 190 in resilient engagement with the flanged end 186 of the button 174 is secured at one end by a rivet 192 to the inside of the switch housing 156.
The following means are provided for eflecting operation of the flashlight circuit. For intermittent operation, depression of the button 174 inwardly moves the free end of a spring arm 190, which spring arm is provided with a contacting tongue 191, and completes the flashlight circuit to ground by causing said tongue 191 to contact the strip contactor 102 through registering aper-.
Steady light operation is obtained by first manually pressing the button to complete the flashlight circuit. This permits the button 174 to be manipulated longitudinally into the track opening 188 and prevents the spring 190 from breaking the circuit when the button 174 is released by reason of the opposition of the button flange 186 against the margin of the track. The button switch operates equally well when the switch housing 156 is in spotlight position or fioodlight position.
It will be understood that modifications and variations may be effected without departing from the scope of the novel concepts of the present invention.
What is claimed is:
1. A flashlight bulb socket assembly for a two filament bulb, comprising a cylindrical shell, a bulb socket concentrically disposed in said shell, said shell and said socket having respectively an annular flange in axial alignment and in abutment with each other, a battery cell cap disk axially spaced from said flanges, a pair of rings each provided with an integral filament contacting tab disposed between said cell cap disk and socket, said rings being predeterminedly insulatingly spaced from each other and from said disk and said socket, and retention means passing through, said disk, rings and flanges and affording electrically conductive means between said disk and said flanges.
2. In the socket assembly set forth in claim 1, said rings having an outer diameter slightly larger than the respective diameters of said flanges and said disk, whereby said rings are adapted for selectively engaging a contacting switch. I
3. In the socket assembly set forth in claim 2, said rings being interchangeable.
References Cited in the file of this patent UNITED STATES PATENTS 1,336,067 Burgess Apr. 6, 1920 1,377,477 Hambuechen May 10, 1921 1,421,093 Matson June 27, 1922 1,499,591 Paine July 1, 1924 1,659,864 Eaton Feb. 21, 1928 1,686,257 Sandberg Oct. 2, 1928 1,700,673 Eckhardt et a1. Jan. 29, 1929 1,932,352 Moran Oct. 24, 1933 1,992,140 Barber et al Feb. 19, 1935 2,225,461 Reynolds Dec. 17, 1940 2,245,793 Kurlander June 17, 1941 I 2,288,808 Kopp July 7, 1942 2,461,634 Doose Feb. 15,1949 2,466,414 Gits et a1. Apr. 5, 1949 2,471,032 Gray et a1. May 24, 1949 2,508,692 Souza May 23, 1950 2,520,023 Allen Aug. 22, 1950 2,550,145 Geci Apr. 24, 1951 2,643,327 Macklenar June 23, 1953 2,676,217 Garbs Apr. 20, 1954 2,716,182 Carter Aug, 23, 1955 2,812,394 Smith Nov. 5, 1957
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US456807A US2931005A (en) | 1954-09-17 | 1954-09-17 | Bulb socket assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US456807A US2931005A (en) | 1954-09-17 | 1954-09-17 | Bulb socket assembly |
Publications (1)
Publication Number | Publication Date |
---|---|
US2931005A true US2931005A (en) | 1960-03-29 |
Family
ID=23814227
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US456807A Expired - Lifetime US2931005A (en) | 1954-09-17 | 1954-09-17 | Bulb socket assembly |
Country Status (1)
Country | Link |
---|---|
US (1) | US2931005A (en) |
Cited By (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3072874A (en) * | 1960-11-17 | 1963-01-08 | Sylvania Electric Prod | Chassis construction |
US3124306A (en) * | 1964-03-10 | Figure | ||
US3891292A (en) * | 1972-09-26 | 1975-06-24 | Belling & Lee Ltd | Electrical component |
US4577263A (en) * | 1984-09-06 | 1986-03-18 | Anthony Maglica | Miniature flashlight |
US4656565A (en) * | 1984-09-06 | 1987-04-07 | Mag Instrument, Inc. | Flashlight |
US4777582A (en) * | 1987-09-16 | 1988-10-11 | Streamlight, Inc. | Micro-flashlight |
US4811176A (en) * | 1988-04-27 | 1989-03-07 | Ralph Myhres | Flashlight |
US4888670A (en) * | 1987-09-16 | 1989-12-19 | Streamlight, Inc. | Micro-flashlight |
US4899265A (en) * | 1984-09-06 | 1990-02-06 | Mag Instrument, Inc. | Miniature flashlight |
US4916588A (en) * | 1988-08-01 | 1990-04-10 | Akron Industrial Limited | A flashlight with focus and switch control |
US4942505A (en) * | 1984-09-06 | 1990-07-17 | Mag Instrument, Inc. | Miniature flashlight |
US5126927A (en) * | 1988-03-31 | 1992-06-30 | The Brinkmann Corporation | Flashlight having improved bulb enclosure |
US5293307A (en) * | 1984-09-06 | 1994-03-08 | Mag Instrument, Inc. | Miniature flashlight |
US5590951A (en) * | 1994-12-21 | 1997-01-07 | Laser Products Ltd. | Switch-less flashlights |
US5629105A (en) * | 1992-11-24 | 1997-05-13 | Laser Products Corporation | Flashlights and other battery-powered apparatus for holding and energizing transducers |
US5642932A (en) * | 1994-12-22 | 1997-07-01 | Laser Products Corporation | Combat-oriented flashlight |
US5806964A (en) * | 1984-09-06 | 1998-09-15 | Mag Instrument, Inc. | Miniature flashlight |
US6179438B1 (en) | 1999-06-30 | 2001-01-30 | Pelican Products, Inc. | Chargeable flashlight |
US6183105B1 (en) | 1999-06-30 | 2001-02-06 | Pelican Products, Inc. | Flashlight and charger |
US6186641B1 (en) | 1999-06-30 | 2001-02-13 | Pelican Products, Inc. | Flashlight and charging system |
US20040165377A1 (en) * | 2001-08-16 | 2004-08-26 | Anthony Maglica | Flashlight with an aligned lamp bulb |
US20040246710A1 (en) * | 1998-01-26 | 2004-12-09 | Halasz Stephen Joseph | Flashlight |
US6905223B2 (en) | 2000-08-10 | 2005-06-14 | Mag Instrument, Inc. | Flashlight |
US20050207148A1 (en) * | 2004-03-16 | 2005-09-22 | Mag Instrument, Inc. | Apparatus and method for aligning a substantial point source of light with a reflector feature |
USD530438S1 (en) | 1984-09-06 | 2006-10-17 | Mag Instrument, Inc. | Miniature flashlight |
USRE40027E1 (en) * | 1992-11-24 | 2008-01-22 | Surefire, Llc | Flashlights and other battery-powered apparatus for holding and energizing transducers |
USRE40171E1 (en) | 1998-01-26 | 2008-03-25 | Mag Instrument, Inc. | Tubular barrel-shaped flashlight having rotatable switching assembly and focusing and defocusing capability |
US20100177508A1 (en) * | 2009-01-14 | 2010-07-15 | Mag Instrument, Inc. | Portable Lighting Device |
USD844874S1 (en) | 2017-12-11 | 2019-04-02 | Streamlight, Inc. | Lighting device |
USD846783S1 (en) | 2017-12-08 | 2019-04-23 | Streamlight, Inc. | Lighting device |
USD851797S1 (en) | 2017-09-20 | 2019-06-18 | Streamlight, Inc. | Lighting device |
Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1336067A (en) * | 1919-04-08 | 1920-04-06 | Burgess Battery Co | Battery hand-lamp |
US1377477A (en) * | 1921-05-10 | Battery hand-lamp | ||
US1421093A (en) * | 1921-06-17 | 1922-06-27 | Leslie C Matson | Flash light |
US1499591A (en) * | 1920-06-09 | 1924-07-01 | Winchester Repeating Arms Co | Handlamp |
US1659864A (en) * | 1926-09-23 | 1928-02-21 | Eaton Richard Maxwell | Switch for electric flash lights |
US1686257A (en) * | 1927-08-08 | 1928-10-02 | Sandberg Andrew | Lamp socket |
US1700673A (en) * | 1926-09-18 | 1929-01-29 | Eckhardt Fritz | Pocket, cycle, and other lamp |
US1932352A (en) * | 1931-03-06 | 1933-10-24 | Scovill Manufacturing Co | Flashlight switch |
US1992140A (en) * | 1930-06-25 | 1935-02-19 | Bond Electric Corp | Flash light |
US2225461A (en) * | 1938-11-22 | 1940-12-17 | Robert L Reynolds | Electric light socket |
US2245793A (en) * | 1937-09-30 | 1941-06-17 | Westinghouse Electric & Mfg Co | Multiple filament lamp |
US2288808A (en) * | 1940-11-07 | 1942-07-07 | Western Cartridge Co | Hand lamp switch |
US2461634A (en) * | 1945-12-15 | 1949-02-15 | Bright Star Battery Company | Flashlight |
US2466414A (en) * | 1946-04-19 | 1949-04-05 | Joseph A Gits | Waterproof flashlight switch |
US2471032A (en) * | 1946-02-27 | 1949-05-24 | Gray Oscar | Flashlight switch |
US2508692A (en) * | 1945-02-24 | 1950-05-23 | Manuel O Souza | Switch |
US2520023A (en) * | 1946-10-22 | 1950-08-22 | Vance L Allen | Flashlight having multiple lamps for various illuminating effects |
US2550145A (en) * | 1949-01-21 | 1951-04-24 | Stackpole Carbon Co | Electric slide switch |
US2643327A (en) * | 1949-12-22 | 1953-06-23 | Albert H Macklenar | Ventilated insulating spacing shield for flashlight dry cells |
US2676217A (en) * | 1952-05-20 | 1954-04-20 | Garbs Raymond | Flashlight switch |
US2716182A (en) * | 1950-08-04 | 1955-08-23 | Reginald H Carter | Flashlight |
US2812394A (en) * | 1955-01-03 | 1957-11-05 | Frank M Smith | Continuity tester |
-
1954
- 1954-09-17 US US456807A patent/US2931005A/en not_active Expired - Lifetime
Patent Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1377477A (en) * | 1921-05-10 | Battery hand-lamp | ||
US1336067A (en) * | 1919-04-08 | 1920-04-06 | Burgess Battery Co | Battery hand-lamp |
US1499591A (en) * | 1920-06-09 | 1924-07-01 | Winchester Repeating Arms Co | Handlamp |
US1421093A (en) * | 1921-06-17 | 1922-06-27 | Leslie C Matson | Flash light |
US1700673A (en) * | 1926-09-18 | 1929-01-29 | Eckhardt Fritz | Pocket, cycle, and other lamp |
US1659864A (en) * | 1926-09-23 | 1928-02-21 | Eaton Richard Maxwell | Switch for electric flash lights |
US1686257A (en) * | 1927-08-08 | 1928-10-02 | Sandberg Andrew | Lamp socket |
US1992140A (en) * | 1930-06-25 | 1935-02-19 | Bond Electric Corp | Flash light |
US1932352A (en) * | 1931-03-06 | 1933-10-24 | Scovill Manufacturing Co | Flashlight switch |
US2245793A (en) * | 1937-09-30 | 1941-06-17 | Westinghouse Electric & Mfg Co | Multiple filament lamp |
US2225461A (en) * | 1938-11-22 | 1940-12-17 | Robert L Reynolds | Electric light socket |
US2288808A (en) * | 1940-11-07 | 1942-07-07 | Western Cartridge Co | Hand lamp switch |
US2508692A (en) * | 1945-02-24 | 1950-05-23 | Manuel O Souza | Switch |
US2461634A (en) * | 1945-12-15 | 1949-02-15 | Bright Star Battery Company | Flashlight |
US2471032A (en) * | 1946-02-27 | 1949-05-24 | Gray Oscar | Flashlight switch |
US2466414A (en) * | 1946-04-19 | 1949-04-05 | Joseph A Gits | Waterproof flashlight switch |
US2520023A (en) * | 1946-10-22 | 1950-08-22 | Vance L Allen | Flashlight having multiple lamps for various illuminating effects |
US2550145A (en) * | 1949-01-21 | 1951-04-24 | Stackpole Carbon Co | Electric slide switch |
US2643327A (en) * | 1949-12-22 | 1953-06-23 | Albert H Macklenar | Ventilated insulating spacing shield for flashlight dry cells |
US2716182A (en) * | 1950-08-04 | 1955-08-23 | Reginald H Carter | Flashlight |
US2676217A (en) * | 1952-05-20 | 1954-04-20 | Garbs Raymond | Flashlight switch |
US2812394A (en) * | 1955-01-03 | 1957-11-05 | Frank M Smith | Continuity tester |
Cited By (52)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3124306A (en) * | 1964-03-10 | Figure | ||
US3072874A (en) * | 1960-11-17 | 1963-01-08 | Sylvania Electric Prod | Chassis construction |
US3891292A (en) * | 1972-09-26 | 1975-06-24 | Belling & Lee Ltd | Electrical component |
US5806964A (en) * | 1984-09-06 | 1998-09-15 | Mag Instrument, Inc. | Miniature flashlight |
US4656565A (en) * | 1984-09-06 | 1987-04-07 | Mag Instrument, Inc. | Flashlight |
USD530439S1 (en) | 1984-09-06 | 2006-10-17 | Mag Instrument, Inc. | Flashlight |
US4899265A (en) * | 1984-09-06 | 1990-02-06 | Mag Instrument, Inc. | Miniature flashlight |
USD530438S1 (en) | 1984-09-06 | 2006-10-17 | Mag Instrument, Inc. | Miniature flashlight |
US4942505A (en) * | 1984-09-06 | 1990-07-17 | Mag Instrument, Inc. | Miniature flashlight |
US6170960B1 (en) | 1984-09-06 | 2001-01-09 | Mag Instrument Inc. | Miniature flashlight |
US5293307A (en) * | 1984-09-06 | 1994-03-08 | Mag Instrument, Inc. | Miniature flashlight |
US4577263A (en) * | 1984-09-06 | 1986-03-18 | Anthony Maglica | Miniature flashlight |
US4777582A (en) * | 1987-09-16 | 1988-10-11 | Streamlight, Inc. | Micro-flashlight |
US4888670A (en) * | 1987-09-16 | 1989-12-19 | Streamlight, Inc. | Micro-flashlight |
US5126927A (en) * | 1988-03-31 | 1992-06-30 | The Brinkmann Corporation | Flashlight having improved bulb enclosure |
US4811176A (en) * | 1988-04-27 | 1989-03-07 | Ralph Myhres | Flashlight |
US4916588A (en) * | 1988-08-01 | 1990-04-10 | Akron Industrial Limited | A flashlight with focus and switch control |
US5629105A (en) * | 1992-11-24 | 1997-05-13 | Laser Products Corporation | Flashlights and other battery-powered apparatus for holding and energizing transducers |
USRE40027E1 (en) * | 1992-11-24 | 2008-01-22 | Surefire, Llc | Flashlights and other battery-powered apparatus for holding and energizing transducers |
US5590951A (en) * | 1994-12-21 | 1997-01-07 | Laser Products Ltd. | Switch-less flashlights |
US5642932A (en) * | 1994-12-22 | 1997-07-01 | Laser Products Corporation | Combat-oriented flashlight |
USRE40171E1 (en) | 1998-01-26 | 2008-03-25 | Mag Instrument, Inc. | Tubular barrel-shaped flashlight having rotatable switching assembly and focusing and defocusing capability |
US8147090B2 (en) | 1998-01-26 | 2012-04-03 | Mag Instrument, Inc. | Flashlight |
US7001041B2 (en) | 1998-01-26 | 2006-02-21 | Mag Instrument, Inc. | Flashlight |
US20040246710A1 (en) * | 1998-01-26 | 2004-12-09 | Halasz Stephen Joseph | Flashlight |
US6183105B1 (en) | 1999-06-30 | 2001-02-06 | Pelican Products, Inc. | Flashlight and charger |
US6179438B1 (en) | 1999-06-30 | 2001-01-30 | Pelican Products, Inc. | Chargeable flashlight |
US6186641B1 (en) | 1999-06-30 | 2001-02-13 | Pelican Products, Inc. | Flashlight and charging system |
US8770784B2 (en) | 2000-08-10 | 2014-07-08 | Mag Instrument, Inc. | Lighting device |
US20090109664A1 (en) * | 2000-08-10 | 2009-04-30 | Mag Instrument, Inc. | Lighting device |
US8197083B2 (en) | 2000-08-10 | 2012-06-12 | Mag Instrument, Inc. | Lighting device |
US20070076410A1 (en) * | 2000-08-10 | 2007-04-05 | Mag Instrument, Inc. | Flashlight |
US7410272B2 (en) | 2000-08-10 | 2008-08-12 | Mag Instrument, Inc. | Lighting device |
US6905223B2 (en) | 2000-08-10 | 2005-06-14 | Mag Instrument, Inc. | Flashlight |
US6991360B2 (en) | 2001-08-16 | 2006-01-31 | Mag Instrument, Inc. | Flashlight with a light source aligned with a reflector axis |
US20040165377A1 (en) * | 2001-08-16 | 2004-08-26 | Anthony Maglica | Flashlight with an aligned lamp bulb |
US20110222273A1 (en) * | 2004-03-16 | 2011-09-15 | Mag Instrument, Inc. | Lighting device with variable length conductor |
US20050207148A1 (en) * | 2004-03-16 | 2005-09-22 | Mag Instrument, Inc. | Apparatus and method for aligning a substantial point source of light with a reflector feature |
US20080247157A1 (en) * | 2004-03-16 | 2008-10-09 | Mag Instrument Inc. | Apparatus and method for aligning a substantial point source of light with a reflector feature |
US20080259594A1 (en) * | 2004-03-16 | 2008-10-23 | Mag Instrument, Inc. | Lighting device with variable length conductor |
US20060158874A1 (en) * | 2004-03-16 | 2006-07-20 | Mag Instrument, Inc. | Apparatus and method for aligning a substantial point source of light with a reflector feature |
US7334914B2 (en) | 2004-03-16 | 2008-02-26 | Mag Instrument, Inc. | Apparatus and method for aligning a substantial point source of light with a reflector feature |
US7264372B2 (en) | 2004-03-16 | 2007-09-04 | Mag Instrument, Inc. | Apparatus and method for aligning a substantial point source of light with a reflector feature |
US7896519B2 (en) | 2004-03-16 | 2011-03-01 | Mag Instrument, Inc. | Lighting device with variable length conductor |
US20060158876A1 (en) * | 2004-03-16 | 2006-07-20 | Mag Instrument, Inc. | Flashlight |
US7344269B2 (en) | 2004-03-16 | 2008-03-18 | Mag Instrument, Inc. | Lighting device with variable length conductor |
US8210709B2 (en) | 2004-03-16 | 2012-07-03 | Mag Instrument, Inc. | Apparatus and method for aligning a substantial point source of light with a reflector feature |
US8366290B2 (en) | 2009-01-14 | 2013-02-05 | Mag Instrument, Inc. | Portable lighting device |
US20100177508A1 (en) * | 2009-01-14 | 2010-07-15 | Mag Instrument, Inc. | Portable Lighting Device |
USD851797S1 (en) | 2017-09-20 | 2019-06-18 | Streamlight, Inc. | Lighting device |
USD846783S1 (en) | 2017-12-08 | 2019-04-23 | Streamlight, Inc. | Lighting device |
USD844874S1 (en) | 2017-12-11 | 2019-04-02 | Streamlight, Inc. | Lighting device |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US2931005A (en) | Bulb socket assembly | |
US2924680A (en) | Light controlling switch for vehicles | |
US2915621A (en) | Flashlight | |
US2886664A (en) | Flashlight and switch therefor | |
US3124306A (en) | Figure | |
US2226353A (en) | Flashlight | |
US2443539A (en) | Flashlight switch | |
US2566720A (en) | Slide switch | |
US1977086A (en) | Combined snap switch for flash lights | |
US1433570A (en) | Battery hand lamp | |
US1598666A (en) | Symmetrical rotating switch | |
US2341057A (en) | Flashlight | |
US2006175A (en) | Circuit closer | |
US1466350A (en) | Flash light | |
US2285916A (en) | Electric switch | |
US2806100A (en) | Flashlight switch | |
US2297349A (en) | Electrical switching device | |
US1527972A (en) | Handlamp | |
US2991337A (en) | Master selector switch | |
US2197941A (en) | Flashlight switch | |
US3004119A (en) | Combination three light and push-button switch | |
US2852634A (en) | Flashlight construction | |
US2447318A (en) | Starting switch | |
US2980784A (en) | Illuminated push button switch | |
US1590624A (en) | Flash light |