US4721845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrically heatable vehicle glass pane
Assignee: Saint Gobain Vitrage SA
•
Filing: 1986-09-10
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Granted: 1988-01-26
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Expires: 2006-09-10
Abstract
Abstract In an electrically heatable automobile glass pane with heating conductors printed onto and baked into a surface, which conductors are connected to printed-on and baked-in collecting conductors, metal strips are disposed on the baked-in collecting conductors and are electrically connected with these collecting conductors. The baked-in collecting conductors and the metal strips connected with them are furnished with a plastic coating which jointly covers them and is glued to them and to the glass surface.
Inventors
- 👤 Heinz Kunert
- 👤 Gerd Sauer
- 👤 Hans Ohlenforst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 01:06
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/84; H05B2203/00; H05B2203/016
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
97 words
An electrically heatable glass pane comprising: a glass pane member; printed-on and baked-in thin heating electrical conductors disposed on one face of said pane member; printed-on and baked-in collecting electrical conductors disposed on said one face and connected with said heating conductors; metal strips disposed on, and electrically conductingly connected with, said collecting conductors; and a plastic coating covering said collecting conductors and metal strips and bonded to said collecting conductors, metal strips and glass pane, wherein said plastic coating comprising a hardenable adhesive material applied on said collecting conductors and metal strips, and hardened in place.
Claim 2
Dependent Claim
97 words
An electrically heatable glass pane comprising: a glass pane member; printed-on and baked-in thin heating electrical conductors disposed on one face of said pane member; printed-on and baked-in collecting electrical conductors disposed on said one face and connected with said heating conductors; metal strips disposed on, and electrically conductingly connected with, said collecting conductors; and a plastic coating covering said collecting conductors and metal strips and bonded to said collecting conductors, metal strips and glass pane, wherein said plastic coating comprising a hardenable adhesive material applied on said collecting conductors and metal strips, and hardened in place.
Claim 3
Dependent Claim
14 words
The pane of claim 1, wherein said metal strips comprise strips of metal sheet.
Claim 4
Dependent Claim
13 words
The pane of claim 1, wherein said metal strips comprise flat wire strands.
Claim 5
Dependent Claim
16 words
The pane of claim 1, including soldered connections between said metal strips and said collecting conductors.
Claim 6
Dependent Claim
17 words
The pane of claim 1, including ultrasonic welded connections between said metal strips and said collecting conductors.
Claim 7
Dependent Claim
17 words
The pane of claim 1, electrically conductive adhesive connections between said metal strips and said collecting conductors.
Claim 8
Dependent Claim
33 words
The pane of claim 1, including an opaque frame-like facing adjacent edges of said one face of said pane member, wherein said collecting conductors and said plastic coating are formed on said facing.
Claim 9
Dependent Claim
22 words
The pane of claim 7, including an adhesive strand applied to said plastic coating for adhering said pane to a vehicle frame.
Claim 10
Dependent Claim
31 words
The pane of claim 1, wherein said collecting conductors, said metal strip and said plastic coating are disposed at a distance from edges of said pane and within viewing area thereof.
Claim 11
Dependent Claim
33 words
The pane of claim 9, including an opaque frame-like facing adjacent edges of said one face of said pane member, wherein said collecting conductors and said plastic coating are formed on said facing.
Claim 12
Dependent Claim
15 words
The pane of claim 10, including a flat hardened adhesive coating disposed on said facing.
Claim 13
Dependent Claim
33 words
The pane of claim 11, wherein an edge of said flat adhesive coating opposite said pane edge includes lip means for retaining adhesive material when said pane is set into a vehicle frame.
Claim 14
Dependent Claim
17 words
The pane of claim 1, wherein said plastic coating comprises a moisture hardenable, single component polyurethane adhesive.
Claim 15
Dependent Claim
15 words
The pane of claim 1, wherein said plastic coating comprises a two component reaction adhesive.
Claim 16
Dependent Claim
18 words
The pane of claim 1 wherein said plastic coating covers less than the entirely of said one face.
Claim 17
Dependent Claim
17 words
The pane of claim 1 wherein said one face is an outer face of said glass pane.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-01-25 | 1991-07-27 | 1992-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-01-25 | 1995-07-27 | 1996-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-01-25 | 1999-07-27 | 2000-01-26 | $7700.00 | Window Closed / Lapsed |