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US3532858A - Thermal window - Google Patents

Thermal window Download PDF

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Publication number
US3532858A
US3532858A US666796A US3532858DA US3532858A US 3532858 A US3532858 A US 3532858A US 666796 A US666796 A US 666796A US 3532858D A US3532858D A US 3532858DA US 3532858 A US3532858 A US 3532858A
Authority
US
United States
Prior art keywords
bus
thermal
pane
gasket
strips
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
Application number
US666796A
Other languages
English (en)
Inventor
Hans Dieter Peetz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie de Saint Gobain SA
Original Assignee
Compagnie de Saint Gobain SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Compagnie de Saint Gobain SA filed Critical Compagnie de Saint Gobain SA
Application granted granted Critical
Publication of US3532858A publication Critical patent/US3532858A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/84—Heating arrangements specially adapted for transparent or reflecting areas, e.g. for demisting or de-icing windows, mirrors or vehicle windshields
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J1/00—Windows; Windscreens; Accessories therefor
    • B60J1/02—Windows; Windscreens; Accessories therefor arranged at the vehicle front, e.g. structure of the glazing, mounting of the glazing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/023—Cleaning windscreens, windows or optical devices including defroster or demisting means
    • B60S1/026—Cleaning windscreens, windows or optical devices including defroster or demisting means using electrical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
    • B60S1/00—Cleaning of vehicles
    • B60S1/02—Cleaning windscreens, windows or optical devices
    • B60S1/56—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens
    • B60S1/58—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for rear windows
    • B60S1/586—Cleaning windscreens, windows or optical devices specially adapted for cleaning other parts or devices than front windows or windscreens for rear windows including defroster or demisting means
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/016—Heaters using particular connecting means

Definitions

  • a thermal window is provided with a thermal grid of which the current-carrying bus is out of contact with the gasket which mounts the pane.
  • This invention relates to thermal windows the general nature of which is set forth in French Pat. 1,464,585.
  • a thermal grid is provided which has linear thermal strips extending between current-carrying buses.
  • the buses are usually of one piece with the strips.
  • the grids are frequently made by forming thin resistor filaments and bus bands in the plastic layer between two sheets of glass, of the type normally used for automobile Windshields in the United States, or by deposition on the surface of tempered glass windows.
  • FIG. 6 of the French patent which is reproduced herein as our FIG. 1.
  • a pane 41 of tempered glass bears on its surface a thermal grid which is composed of spaced parallel strips or filaments 46 connected at their ends to bus bands 6, which extend along opposite edges of the pane.
  • a contact 43 brings current from a lead 45 to the bus band, which distributes it to the strips, it passes through the strips to the other bus and returns to its source.
  • the pane is set in a rubber gasket 44, which covers the bus bands.
  • thermal window having a pane of glass, a thermal grid mounted in contact therewith, the thermal grid having thermal strips extending between current-carrying bus means, the pane being mounted in gasket means, and the bus means having current carrying portions out of contact with the gasket means.
  • FIG. 1 is a substantial copy of FIG. 6 of the aforesaid French patent.
  • FIG. 2 is a perspective view, partly in section, of a preferred form of the invention illustrating a thermal window carrying a thermal grid constructed in accordance with the principles of the invention.
  • the numeral 1 indicates a pane of tempered 3,532,858 Patented Oct. 6, 1970 Ice glass
  • numerals 2, 3 indicate a thermal grid of some useful type, for instance of the type described in the French patent, which is in contact with the pane, part 3 being one of the bus bands or bars between which the parallel resistance strips 2 extend.
  • Aflixed to the band 3 is an input contact 4, 5 which is to be connected to a currentcarrying lead, not shown.
  • the type of thermal window shown is of the sort used as automobile rear windows.
  • the distance B is the total width of the current-carrying bus, and the width A indicates an extension of the bus beyond the limits of the gasket.
  • each bus band has a width greater than the part of it which is covered by the rubber gasket, which is, in effect, to say that each bus band has a part out of contact with the gasket, the part being adequate in itself to carry the current to and from the resistor strips which connect the two bands.
  • the connection between the source of current and the bus band should furnish a conductive line free of the gasket.
  • the strips do not break away from the bands, substantially equal current is delivered to all bands by the buses regardless of their distances from the contacts, the increase of resistance with age does not occur, and a lifetime of uniform service is assured.
  • the ordinary gasket is non-conductive by test and by material, it is apparent that an unusual phenomenon is present, the precise nature of which is unknown. However, it may be assumed that, although the gasket is non-conductive, it in some way inhibits the flow of current in the part of the bus with which it is in contact, but that this inhibition does not extend to parts of the bus which it does not touch, even though the two parts of the bus are unitary.
  • strip in the claims is to be interpreted as including wires, ribbons, filaments and rods.
  • a mounting gasket of resilient rubbery dielectric material having a channel therein extending along its longitudinal dimension, to define spaced side walls, a pane of glass having an edge fitting said channel, a thermal grid comprising a plurality of electrical conductor strips extending in spaced relation permitting visibility through the pane over and in contact with said pane, in a direction generally transverse of said channel, and a bus bar electrically connecting the ends of said strips and interposed between said pane and one side wall of said channel, said bus bar having an edge portion exposed to the atmosphere extending longitudinally along said gasket out of contact therewith, said edge portion being adequate in itself to carry the electrical current passing through the thermal grid, the glass pane, the bus bar and the mounting gasket being in direct and tight contact with each other.
  • thermal window of claim 1 said bus bar being a flat ribbon of metal, said exposed portion thereof having a longitudinal edge generally parallel with said gasket, the ends of said strips merging into said edge.
  • thermo window of claim 2 and an electrical input contact fixed with said bus bar over at least a portion of said exposed portion thereof.
  • a mounting gasket of resilient rubbery dielectric material having a channel therein extending along its longitudinal dimension, to define spaced side Walls, a pane of glass having an edge fitting said channel, a thermal grid comprising a plurality of electrical conductor strips extending in spaced relation over and in contact with said pane, in a direction generally transverse of said channel, and a bus bar electrically connecting the ends of said strips and interposed between said pane and one side wall of said channel, said bus bar having a free exposed surface area extending longitudinally along said gasket, out of contact therewith, said bus bar being a fiat ribbon of metal, said exposed area thereof defining a longitudinal edge generally parallel with said gasket, the ends of said strips merging into said edge, and an electrical input contact fixed with said bus bar over at least a portion of said exposed area thereof, said contact being flat and extending into said channel between said one side wall thereof and said bus bar, the pane, the bus band, the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Surface Heating Bodies (AREA)
  • Resistance Heating (AREA)
US666796A 1966-09-13 1967-09-11 Thermal window Expired - Lifetime US3532858A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR76152A FR1527739A (fr) 1966-09-13 1966-09-13 Perfectionnements apportés aux vitrages chauffants pour véhicules, notamment pour automobiles

Publications (1)

Publication Number Publication Date
US3532858A true US3532858A (en) 1970-10-06

Family

ID=8617007

Family Applications (1)

Application Number Title Priority Date Filing Date
US666796A Expired - Lifetime US3532858A (en) 1966-09-13 1967-09-11 Thermal window

Country Status (9)

Country Link
US (1) US3532858A (es)
BE (1) BE703734A (es)
BR (1) BR6792852D0 (es)
CH (1) CH463978A (es)
DE (1) DE6604663U (es)
ES (1) ES344880A1 (es)
FR (1) FR1527739A (es)
GB (1) GB1198674A (es)
SE (1) SE340574B (es)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813519A (en) * 1964-11-09 1974-05-28 Saint Gobain Electrically heated glass window
US4415196A (en) * 1980-02-07 1983-11-15 Saint-Gobain Vitrage Glass with conductive strips for supplying windshield wiper
US4450346A (en) * 1981-05-14 1984-05-22 Ford Motor Company Electric heater plate
US20100112868A1 (en) * 2006-12-21 2010-05-06 Pilkington Automotive Frances Sa Electrical connector

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0009927A1 (en) * 1978-10-05 1980-04-16 DAVID PARR & ASSOCIATES LIMITED Electrical connector assembly and a window heater connected by said assembly
GB201610639D0 (en) 2016-06-17 2016-08-03 Univ Swansea Glass laminate structure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513993A (en) * 1946-07-13 1950-07-04 Budd Co Panel heating
US2625640A (en) * 1950-08-05 1953-01-13 Libbey Owens Ford Glass Co Multiple glass sheet glazing unit
US2977450A (en) * 1957-12-16 1961-03-28 Libbey Owens Ford Glass Co Transparent electrically conducting films
FR1264475A (fr) * 1959-11-20 1961-06-23 Perfectionnements aux dispositifs de chauffage par trames électriques
US3288983A (en) * 1963-07-29 1966-11-29 Lear Jet Corp Electrical resistance de-icing means for aircraft windshields
FR1464585A (fr) * 1964-04-23 1967-01-06 Saint Gobain Vitrage chauffant pour véhicule, procédé et appareillage pour sa fabrication
US3315217A (en) * 1965-03-19 1967-04-18 Elco Corp Connector for thin film circuits

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2513993A (en) * 1946-07-13 1950-07-04 Budd Co Panel heating
US2625640A (en) * 1950-08-05 1953-01-13 Libbey Owens Ford Glass Co Multiple glass sheet glazing unit
US2977450A (en) * 1957-12-16 1961-03-28 Libbey Owens Ford Glass Co Transparent electrically conducting films
FR1264475A (fr) * 1959-11-20 1961-06-23 Perfectionnements aux dispositifs de chauffage par trames électriques
US3288983A (en) * 1963-07-29 1966-11-29 Lear Jet Corp Electrical resistance de-icing means for aircraft windshields
FR1464585A (fr) * 1964-04-23 1967-01-06 Saint Gobain Vitrage chauffant pour véhicule, procédé et appareillage pour sa fabrication
US3315217A (en) * 1965-03-19 1967-04-18 Elco Corp Connector for thin film circuits

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3813519A (en) * 1964-11-09 1974-05-28 Saint Gobain Electrically heated glass window
US4415196A (en) * 1980-02-07 1983-11-15 Saint-Gobain Vitrage Glass with conductive strips for supplying windshield wiper
US4450346A (en) * 1981-05-14 1984-05-22 Ford Motor Company Electric heater plate
US20100112868A1 (en) * 2006-12-21 2010-05-06 Pilkington Automotive Frances Sa Electrical connector
US8106332B2 (en) * 2006-12-21 2012-01-31 Pilkington Automotive France Sa Electrical connector for automotive glazing

Also Published As

Publication number Publication date
GB1198674A (en) 1970-07-15
DE6604663U (de) 1970-01-29
SE340574B (es) 1971-11-22
BR6792852D0 (pt) 1973-12-27
FR1527739A (fr) 1968-06-07
ES344880A1 (es) 1968-11-01
CH463978A (fr) 1968-10-15
BE703734A (es) 1968-03-11

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