US3849244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-reflecting laminated safety glass pane
Assignee: Flachglas Wernberg GmbH
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Filing: 1972-02-29
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Granted: 1974-11-19
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Expires: 1992-02-29
Abstract
Abstract A heat-reflecting laminated safety glass pane includes a glass pane, a heat-reflecting stratum applied to the glass pane and comprising a plurality of individual layers, for example a ZnSgold-ZnS combination, a laminating film applied over the heatreflecting stratum and a covering pane attached to the laminating pane. In order to improve the splinter adhesion of such a pane, a vacuum-coated adhesive layer comprising a dielectric and substantially absorption free material is disposed between the glass pane and the heat-reflecting stratum. The adhesive layer comprises a metal fluoride and/or metal oxide and preferably has a coating temperature which is below that of the material of one of the layers of the heat-reflecting stratum whereby the same vacuum coating apparatus can be employed for the application of the adhesive layer and the relevant layer of the heat-reflecting stratum.
Inventors
- 👤 R Groth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:38
CPC Classifications
C; C03; C03C; C03C17/00; C03C17/34; C03C17/36; C03C17/3602; C03C17/3618; B; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10165; B32B17/10174; B32B27/00; B32B27/30; B32B27/306; B32B7/00; B32B7/04; B32B7/12; C03C17/3621; C03C17/3628; C03C17/3649; C03C17/3657; C03C17/366; C03C17/3681; C03C17/42; B32B2329/00; B32B2329/06; C03C2217/00; C03C2217/70; C03C2217/73; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/269; Y10T428/31504; Y10T428/31551; Y10T428/31627; Y10T428/3163; Y10T428/31678
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
144 words
A HEAT REFLECTIVE, SAFTEY GLASS LAMINATE EXHIBITING IMPROVES SPLINTER ADHESION ADAPTED FOR USE IN MOTOR VEHICLES AND AIRCRAFT COMPRISING, IN FACE-TO-FACE, SEQUENTIAL BONDED ENGAGEMENT WITH ONE ANOTHER A. A FIRST LAYER COMPRISING A GLASS PANE, B. A SECOND LAYER RANGING FROM ABOUT 30 TO 100A IN THICKNESS OF VACUUM VAPOR DEPOSITED MATERIAL SELECTED FROM THE GROUP CONSISTING OF THORIUM FLUORIDE, SODIUM FLUORIDE, CRYOLITE, MAGNESIUM FLUORIDE, LANTHANUM FLURIDE, AND CERIUM FLUORIDE EACH HAVING A VAPORIZATION TEMPERATURE ABOVE ABOUT 1000*C. C. A THIRD LAYER WHICH IS SUBSTANTIALLY TRANSPARENT CONSISTING ESSENTIALLY OF HIGH REFRACTIVE INDEX ZINC SULFIDE, D. A FOURTH LAYER WHICH IS SUBSTANTIALLY TRANSPARENT CONSISTING ESSENTIALLY OF GOLD, E. A FIFTH LAYER WHICH IS SUBSTANTIALLY TRANSPARENT CONSISTING ESSENTIALLY OF HIGH REFRACTIVE INDEX ZINC SULFIDE, F. A SIXTH ALYER CONSISTING ESSENTIALLY OF AN ADHESIVE ORGANIC POLYMERIC TRANSPARENT FIL, AND G. A SEVENTH LAYER COMPRISING A GLASS PANE.
Claim 2
Dependent Claim
144 words
A HEAT REFLECTIVE, SAFTEY GLASS LAMINATE EXHIBITING IMPROVES SPLINTER ADHESION ADAPTED FOR USE IN MOTOR VEHICLES AND AIRCRAFT COMPRISING, IN FACE-TO-FACE, SEQUENTIAL BONDED ENGAGEMENT WITH ONE ANOTHER A. A FIRST LAYER COMPRISING A GLASS PANE, B. A SECOND LAYER RANGING FROM ABOUT 30 TO 100A IN THICKNESS OF VACUUM VAPOR DEPOSITED MATERIAL SELECTED FROM THE GROUP CONSISTING OF THORIUM FLUORIDE, SODIUM FLUORIDE, CRYOLITE, MAGNESIUM FLUORIDE, LANTHANUM FLURIDE, AND CERIUM FLUORIDE EACH HAVING A VAPORIZATION TEMPERATURE ABOVE ABOUT 1000*C. C. A THIRD LAYER WHICH IS SUBSTANTIALLY TRANSPARENT CONSISTING ESSENTIALLY OF HIGH REFRACTIVE INDEX ZINC SULFIDE, D. A FOURTH LAYER WHICH IS SUBSTANTIALLY TRANSPARENT CONSISTING ESSENTIALLY OF GOLD, E. A FIFTH LAYER WHICH IS SUBSTANTIALLY TRANSPARENT CONSISTING ESSENTIALLY OF HIGH REFRACTIVE INDEX ZINC SULFIDE, F. A SIXTH ALYER CONSISTING ESSENTIALLY OF AN ADHESIVE ORGANIC POLYMERIC TRANSPARENT FIL, AND G. A SEVENTH LAYER COMPRISING A GLASS PANE.
Claim 3
Dependent Claim
29 words
The laminate of claim 1 wherein said second layer is deposited by vacuum vapor deposition on said first layer at a temperature below the vaporization temperature of zinc sulfide.
Claim 4
Dependent Claim
12 words
The laminate of claim 1 wherein said second layer comprises thorium fluoride.
Claim 5
Dependent Claim
11 words
The laminate of claim 1 wherein said second layer comprises cryolite.
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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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |