US3736404A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined demisting and defrosting heating panel for windows and other transparent areas
Assignee: Individual
•
Filing: 1970-12-08
•
Granted: 1973-05-29
•
Expires: 1990-12-08
Abstract
Abstract Heater panel for application of heat to a transparent area, demisting and de-icing of vehicle rear windows. A panel form, adherent to the transparent area, has a transparent base of plastics material onto which there is made adherent a series of spaced parallel electrical solid conductor elements in meander form. The conductor elements are covered with an adhesive for ensuring sticking of them to the transparent area and to assist direct heat conduction to the transparent area. For variable rates of heating selective switching of series or parallel arrangements of the conductor elements is possible.
Inventors
- 👤 P Eisler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:43
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/84; H05B2203/00; H05B2203/014
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
138 words
A combined de-misting and defrosting heating panel for windows and other transparent areas comprising a thin, transparent, flexible plastic base panel, a series of narrow, parallel, longitudinal solid metal heating elements forming a meander pattern mounted on said base panel and sufficiently distanced from each other to permit substantially uninterrupted vision, the parallel heating elements forming at least one electric circuit for heating the transparent area and are adapted to be connected to a supply of current and adhesive means applied over and completely covering said heating elements without said adhesive means covering any substantial part of the area of the window between said parallel heating elements so that the transparent panel can be stuck directly to the inside of the window so as to permit heat to be conducted directly from the heatIng elements to the window.
Claim 2
Dependent Claim
138 words
A combined de-misting and defrosting heating panel for windows and other transparent areas comprising a thin, transparent, flexible plastic base panel, a series of narrow, parallel, longitudinal solid metal heating elements forming a meander pattern mounted on said base panel and sufficiently distanced from each other to permit substantially uninterrupted vision, the parallel heating elements forming at least one electric circuit for heating the transparent area and are adapted to be connected to a supply of current and adhesive means applied over and completely covering said heating elements without said adhesive means covering any substantial part of the area of the window between said parallel heating elements so that the transparent panel can be stuck directly to the inside of the window so as to permit heat to be conducted directly from the heatIng elements to the window.
Claim 3
Dependent Claim
22 words
A heating panel as claimed in claim 1 wherein the heating panel is applied to the rear window of a motor vehicle.
Claim 4
Dependent Claim
24 words
A heating panel as claimed in claim 1 wherein the heating elements are in the form of a continuous single strip of metal foil.
Claim 5
Dependent Claim
22 words
A heating panel as claimed in claim 1 wherein the heating element is in the form of a single continuous metal wire.
Claim 6
Dependent Claim
26 words
A heating panel as claimed in claim 1 wherein the heating element is in the form of a continuous single, edge-folded strip of metal alloy foil.
Claim 7
Dependent Claim
18 words
A heating panel as claimed in claim 1 wherein the heating element consists of an alloy of aluminum.
Claim 8
Dependent Claim
24 words
A heating panel as claimed in claim 1 wherein the heating element is in the form of a continuous strip of crimped metal foil.
Claim 9
Dependent Claim
50 words
A heating panel as claimed in claim 1 wherein the adhesive means used to stick the base transparent panel to the inside of the rear window of a motor vehicle comprises double-sided self-adhesive tapes of slightly greater width than the heating elements, said tapes being placed over the heating elements.
Claim 10
Dependent Claim
52 words
A heating panel as claimed in claim 1 wherein said adhesive means comprises double-sided self-adhesive tape of slightly greater width than the heating elements placed over said heating elements and somewhat wider self-adhesive tape is placed along the panel borders and is adapted to be stuck to the inside of the window.
Claim 11
Dependent Claim
29 words
A heating panel as claimed in claim 1 wherein the space between adjacent parallel heating elements forms thin enclosed air pockets which are heated by the surrounding heating elements.
Claim 12
Dependent Claim
27 words
A heating panel as claimed in claim 1 wherein the heating elements are connected in two circuits which can be selectively switched on in series and parallel.
Claim 13
Dependent Claim
32 words
A heating panel as claimed in claim 1 wherein the parallel heating elements are arranged horizontally and are joined with shorter vertical portions to form a continuous circuit in the meander pattern.
References Cited (Backward Citations)
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US3372487A
Cited
US3539767A
Cited
US3475595A
Cited
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Cited
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US3601583A
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US3636311A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |