US2602572A - Hand-operated dispenser for viscous fluids - Google Patents

Description

July 8, 1 o. e. GOODSON HAND-OPERATED DISPENSER FOR VISCOUS FLUIDS Filed Oct. 13, 1950 (E: I .92 s 8 90 v" V l 76 a8 J J6 In IH W Z W Z- P I F 46 50 Z0 44 INVENTOR. if 0775 G: Gaoasow BY Wzwz flwm flm charging me'a'nsyand l.

the reception of the axially reduced. en

Patented July 8, 1952 UNITEDQSTAT AND-OPER TED DISPENSER FOR V'FLUIDS VISCOUS Otis GQ-Goodson, Oakville, Tenn. H Application October 13, 1950, Serial Nb. 189,998 T Thisinvention appertains to-a'hand operated fluiddispenser and ispartieularly adaptable -ior use in dispensing fluids 'havingahi'gh viscosity. One of the primary objects oi this inventionis to provide a small and compact dispensing-mechanism. which is operatively associata'blewitha "conventional crown type cammea'ns being, therefore; especially provided for mountihg the dispensing mechanism in'thecan. r r 1 Another object of this invention is to-lprovide a pumping mechanism; operativelyi'disposed in I the can and to provide an operating means; disposed exteriorlyof and mounted on the can',"the operatingineans being'reactive to' a slight manual pressure foreffecting a pumping stroke ofthe pumping mechanism, whereby a" predetermined amount of fluid is ejected. from the-can; g J These and'a'ncilla'ryobjects-and Structural featureseffmerit are attained 'by this invention, as set forth in the followingjdescription and: illustratedin'the accompanyingidrawing, wherein'z'" 1 Figure 1 is 7 an enlarged side Y elevational view of the' di'spensing mechanism; illustrated in operative attachment to a conventionalcrown type can I .i .7 .r ii 5' Figure 2- isa -vertical sectional view of the can and I illustrating --i-n section the pumping means and .cperatingm'eans therefor; as well asflthe dis- Figure 3 is a transverse v sectional view'taken canines-3 ofFigureZ.

Referring now mor'eparticularliy to the .accom- I panying drawing, the hand operated dispenser lfi includes a-dispensing mechanism 12, which is operativelyassociated with a. container l4. The

container l-4 is a co'nventional. crown type can, formed with a mouthlG, having an outer jbead 18.

having an inner mouth 26 and a terminating flange 28. Circumferentiallyspaced vertical' slots 30 are formed in the skirt'permitting expansion of 'the fiange and skirt-overcthe beadLZG, upon inountin'g'the head 2ll'on the can. The :flange :28 "is adapted to 'gripontothebead 26 in an even pressure contact therewith, the "mouth 2616f the skir't encompassingthe "bead and zlocating; the head 20 in a transvers'eposition onathe-lmouth.

A; vertical vpassage 32 is formedin the headan'd aligned with'the-center of the mouth ofctheican, the upperend of the passage being threaded for dof a. cap

. o ;2 claims; (Cl. 222-340) are carried by the tube and suspended or plug 34. A vertical bore 36 is formed in the 'pl'ugto accommodatean operating rod 38, having an enlarged outer end :46; A manually actuable operating means .42- is provided .and operatively connected to the rod 38 for 'raisin'gthe rod inthe passage and bore 7 1 .A substantially elliptical shaped'handle 44 is provided and isformed with a lateral mounting flange 46 at one end, the mounting. flange being aflixecl to and projecting laterally from the top surface of thehead. The handle 44 isspaced outwardly from and disposed at right angles to the head, in order that the handle may be 10- cated-in-engage'ment of the side wall of the can and, in furtherance of this, a U-shaped resilient clip 48 is carried by the handle, adjacent the opposing end thereof. The clip 48 encompasses a portion of the side of the can below the mouth and as'sistsin the mountingofcthe head 20 on the m0uth.- v1.

' The lifting means 42 includes a mounting plate 50, which is affiired to the flange 46 and is'fo'rmed with upstanding ears. A lifter 52 is pivotally supported by the plate 50, the lifter being attached to the plate by a link 54, one of the terminals of the link being pivoted to the upstanding ears of the plate and the opposing terminal being pivoted to the'lifter 52, A contact end 56 of the lifter is offsettherefrom and is formed with an openin 58 for the reception of the rod 38, the contact end 56 being engageable with the underside of the enlarged or ball end 40 of the rod for' efiecting, upon the applicatiorrof manual pressure to the'outerend of anupward movement of the rod 38." a a a The lower' end of the passage 32 is threaded for the reception of the upper threaded end of a tubular conduit 60, the conduit depending there- ;from-into' thecontainer. A gasket 62 is circumposed n the upper end o" fthetube and'held in a fixed position by a locking nut 64 engaged' on the upper threaded terminal of the tube, the gasket being positionedin'the mouth of the container andconstituting'a closure, with the undersurface of the head *resting on the outer edge of the mouth above the bead, as seen in Figure 2.

An outwardly projecting lateral shoulder 66"is formed on the lower end of the tube and a pair of telescopically arranged pumpin members -68 in a rested the lifter,

position on the shoulder 66 7 The pumping members 68 include a sleeve 10,

'havinga lateral inwardly directed flange 12 formed on its upper end and engageable on the shoulder'GB, the flange" constituting a stop for limiting the downward movement of the sleeve on the tube. A spring M is concentrically coiled on the tube 60, the spring bearing at one end against the locking nut 84 and, at its opposing end on the flange 12. A cylinder 16 slidably encompasses the sleeve 10, the cylinder being provided with an upper open end and a closed lower end E8. The lower end I8 is formed with a vertical bore 8% forreception of the lower terminal of rod 38, the bore 80 having a counterbore 82, within which a locking nut 84 is seated.

Laterally arranged ports 86 and- 8 8 are formedin the side wall of the cylinder, adjacent the end wall I8, and communicate the cylinderwith the container, when the cylinder and sleeve are in their rested position, as seen in Figure 2. -It will be noted that the lower edge 90 of the sleeve is bevelled and constitutes a valve for closing the ports 86 and 88, upon upward movement of the cylinder 16, as will be .described. A spring .92 is housed within the sleeve.- 70, the spring :bearing at one end on the lower edge of the tube 60 and engaging the inner surface of theend wall :18 of the cylinderto resist the movementof the cylinder upwardly on the tube, :in cooperation withthe spring M.

. flexible spout 94 is mounted on the headill,

the spout being provided with ,;a connectingtube -95 having its threaded end Bathreadingly engaged in the outer threaded, end of ;a passageyl fiil transversely; formed in the head and communicated with the passage 32.. An annularstopllll is formed on the tube 96 to limit-the insertionof .theanchoring threaded; end in therpassage. J

A' check valve assembly I02 is provided and is operatively interposed between, the tube 96 and .-.the;pass'age 32, the check valve assembly [82 including. a spring retainer l 04 transversely disposed in the passage I86 and spaced inwardly of the outer threaded endof the passage. Aispring H26. ;is;seated in the retainer and supports a-ball lBS, normally seated in the valve-seat l lt formed at the inner, end of the passage IDOL 4 check valve, the fluid passing through the tube 96 and the flexible spout 94. Upon the exhaustion of the fluid, the check valve will automatically reseat itself and, the springs 14 and 92 will automatically effect a vacuum stroke of the cylinder. As the telescopically arranged cylinder and sleeve return to their rested position, after completion of the power stroke and automatic reseating of the ball I08, vacuum will formdn the passage 32 in the tube, so that as the cylinder moves down- I -wardly away from the sleeve, the sleeve being held -by the'flange l2v bearing on the shoulder 66, -,the ports 85 and'88 will again establish communication between the cylinder and container and, due to the vacuum therein, the cylinder and tube will immediately be filled with the fluid.

While the dispenser is particularly and especially designed for dispensing fluids having a high viscosity, obviously, any type of fluids may .Prior to the useof the-dispenser, thecylinder and vsleevewill be in.,their ;relative positions-,as :seen in Figure 2, the portspili; and 88 of the cylinder: establishing communication between the .cylinder "tube and ,the container, so that a pre- -'determined-amount of fluid is housed within the cylinder and-tube. Accidental ejection of the fluid from the cylinder and, tubeis'prevented by the check valve assembly (92.. flhe dispenser is pressure is applied to the lifter 52 by means of a thumb placed on the outer end thereof- ,Down- :ward pressure imposed on the end of the lifter "causes the contact end ,55 to rise and moves the rodfitl, upwardly in the passage and bore. ,ward movement of the rod 38 will result in an upward ,or power stroke of the cylinder 16 and sleevef td. initially, the cylinder will bemovedby ,the rod to a.posit ion,;whe re the lower edge of the sleeve will close on the communicating ports 86 and cylinder and a discharge stroke of the cylinder. The fluid in the cylinderand' tube, under t in h end wa l. act as-aipiston will be forced into the passage 32 and open the vheldin one hand, by means of thehandle-M'and be dispensed and, also, the dispenserxmay be usedwith any type of container, it-not necessarily being, restricted for-operative association with a crown-typo can.- ,Having thus; described thisinvention, whatis claimed is: r

1. In a hand operated fluid dispenser, a con-,

' a cylinder having; an openupper end and a closed lowerend arranged within said container sothat the open upper end faces said head member, said, actuating rod extendingthrcugh the open upper end of said cylinder and having its lower end secured to the closed lower end ofsaidcylinder, a ,sleeve slidably encompassing the lower end ofsaidtubular member and having theupper end dependingly connected to the lowerend lofrsaid tubular member, said sleeve surrounding said. actuating rod, and extending through the open upper end of said cylinder,. aspring operatively positioned between the lowerendof said tubular member and the closedend ofsa'idcylinder and resisting upward movement of the; cylinder :on the sleeve, another spring circumposed about said tubular member and bearingagainst :theupper end of said sleeve for resisting-the up- :stroke of the cylinder and the sleeveand 'auto-.

and 88. Thus, initial'actuation of the rod 33,

matically strokingwthe sleeve, and cylinderto arrested position said cylinder, having meansior admitting fluid from the container. into the cylinder andflthe tubular member, and a discharge spout connectedto, the head member and communicating with saidpassage. A

2. In a hand operated fluid dispenser, a con- .tainer having a mouth formed. withv an outer bead, a head mounted on the mouth, a gripping member on saidhead frictionallyengageable on the head for securing the head transversely on the mouth, said. head being formedvyithayertical passage aligned with the mouth, a cap closing ofi .thdupper end .of the .passageyand having :a vertical bore therein-,an actuating-rod slidably disposed in;the bore and passage; and depending into the container,alifter'mounted on the head and operatively. connected to therod, a tube securedto the head and aligned with the passage; said tube housingtherod, an exterior shoulder on the lower end of the tube, a sleeve slidably 2,602,572 5 6 disposed on the tube, a stop on the upper end of passage and a check valve interposed between the sleeve engageable on the shoulder, a cylinder the passage and the spout. having an open end receiving said sleeve and OTIS G. GOODSON. having a closed end transverse to the tube,

means connecting the rod to the closed end, said 5 REFERENCES C E cylinder having lateral ports for admitting fluid ,The following references are of record in the from the container into the cylinder and tube, fil of this patent;

a spring operatively positioned between the lower end of the tube and the closed end of the cylin- UNITED STATES PATENTS der and resisting upward movement of the cylin- 10 Number Name Date der on the sleeve, a spring concentrically dis- 4 0,0 8 Bullard Aug. 2, 1892 posed on the tube and bearing on the sleeve stop 1,731,7 4 Coffin Oct. 15, 1929 for resisting the upstroke of the cylinder and the 1,816,792 Paull July 28, 1931 sleeve and automatically strokin th sleeve and 1,916,392 Spring July 4, 1933 cylinder to a rested position, a spout carried by 1 2,086,467 Bryan July 6, 1937 the head and laterally communicating with the ,1 8,493 Plews Aug. 8, 1939

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