US4170688A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for bonding an improved metallic support member to glass surfaces
Assignee: Saint Gobain Industries SA
•
Filing: 1978-07-06
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Granted: 1979-10-09
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Expires: 1998-07-06
Abstract
Abstract The invention disclosed provides a new improved metallic support member and process for bonding the metallic support member to a glass surface by means of an intermediate vitreous coating.
Inventors
- 👤 Paul Roentgen
- 👤 Hubert Simons
- 👤 Werner Nuding
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:37
CPC Classifications
B; B60; B60R; B60R1/00; B60R1/02; B60R1/04; C; C03; C03C; C03C27/00; C03C27/04; C03C27/048; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
75 words
A process for bonding a metal part to a glass surface, which comprises applying an intermediate vitreous enamel coating to the metal part, and securing the metal part to the glass surface by means of a thermoplastic adhesive disposed between the vitreous enamel coating and the glass surface, said metal part being a suppport member for attachment of a rear-view mirror assembly and said glass surface being the inner side of an automobile glass windshield.
Claim 2
Dependent Claim
75 words
A process for bonding a metal part to a glass surface, which comprises applying an intermediate vitreous enamel coating to the metal part, and securing the metal part to the glass surface by means of a thermoplastic adhesive disposed between the vitreous enamel coating and the glass surface, said metal part being a suppport member for attachment of a rear-view mirror assembly and said glass surface being the inner side of an automobile glass windshield.
Claim 3
Dependent Claim
26 words
The process according to claim 1 wherein the enamel coating is produced by ceramic coating which is fired at temperatures of 550° to about 650° C.
Claim 4
Dependent Claim
20 words
The process according to claim 1 wherein the thermoplastic adhesive is polyvinyl butyral containing 21% to 30% by weight plasticizer.
Claim 5
Dependent Claim
41 words
A metallic support member bonded to a glass surface by a thermoplastic adhesive characterized in that the metallic support member includes a vitreous coating disposed on the surface thereof facing the glass surface and in direct contact with said thermoplastic adhesive.
Claim 6
Dependent Claim
41 words
A metallic support member bonded to a glass surface by a thermoplastic adhesive characterized in that the metallic support member includes a vitreous coating disposed on the surface thereof facing the glass surface and in direct contact with said thermoplastic adhesive.
Claim 7
Dependent Claim
16 words
The metallic support member of claim 4 wherein the intermediate vitreous coating is an enamel surface.
Claim 8
Dependent Claim
49 words
In a glass windshield having a metallic supporting member bonded to the glass surface by a thermoplastic adhesive for attachment thereto of a rear-view mirror assembly, the improvement which comprises an intermediate vitreous coating disposed on the metal surface of the member which is adhesively bonded to the windshield.
Claim 9
Dependent Claim
49 words
In a glass windshield having a metallic supporting member bonded to the glass surface by a thermoplastic adhesive for attachment thereto of a rear-view mirror assembly, the improvement which comprises an intermediate vitreous coating disposed on the metal surface of the member which is adhesively bonded to the windshield.
Claim 10
Dependent Claim
14 words
The glass windshield of claim 6 wherein the vitreous coating is an enamel coating.
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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) | 1982-10-08 | 1983-04-09 | 1983-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-08 | 1987-04-09 | 1987-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-08 | 1991-04-09 | 1991-10-09 | $7700.00 | Window Closed / Lapsed |