US3281296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for edge sealing safety glass
Assignee: Permaglass Inc
•
Filing: 1963-04-08
•
Granted: 1966-10-25
•
Expires: 1983-04-08
Abstract
No abstract record available.
Inventors
- 👤 William M Jameson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:46
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/68; B29C70/74; B29C70/76; B29C70/763; B29C43/00; B29C43/02; B29C43/10; B29C43/12; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10165; B32B17/10293; B32B17/10302; B32B17/10807; B32B17/10816; B32B17/10825; B32B17/10834; B32B17/10981; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31645
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
194 words
THE METHOD OF FORMING LAMINATED SAFETY GLASS COMPRISING, IN COMBINATION, ASSEMBLING INTO A SANDWICH TWO SHEETS OF GLASS OF SUBSTANTIALLY THE SAME SIZE AND SHAPE SO THAT THE EDGES OF SAID SHEETS ARE IN REGISTRY AND AN INTERMEDIATE SHEET OF THERMOPLASTIC RESINOUS MATERIAL WITH THE EDGES OF SAID RESINOUS SHEET PROJECTING OUTWARDLY BEYOND THE EDGES OF SAID GLASS SHEETS APPROXIMATELY 1/8 TO APPROXIMATELY 3/8 OF AN INCH, EMBRACING THE EDGES OF SAID SANDWICH WITH A HOLLOW TIRE OF AN ELASTOMERIC MATERIAL EXTENDING AROUND THE ENTIRE PERIPHERY OF SAID THREE SHEETS TO SEAL OFF THE PERIPHERAL EDGES OF SAID SANDWICH, SUBJECTING THE INTERIOR OF SAID TIRE TO A VACUUM FOR REMOVING AIR THEREFROM AND FROM BETWEEN SAID THREE SHEETS, RASING THE TEMPERATURE OF THE ASSEMBLE TO ONE SUFFICIENTLY HIGH TO SOFTEN THE RESINOUS MATERIAL WHILE SUBJECTING THE TIRE TO VACUUM TO COLLAPSE SAID TIRE INWARDLY AGAINST THE PERIPHERAL EDGES OF SAID THREE SHEETS TO DEFORM THE PROJECTION OF SAID RESINOUS SHEET INTO A BESD AGAINST THE EDGES OF SAID SHEETS OF GLASS AND COVERING THE CRACKS THEREBETWEEN, AND COOLING THE ASSEMBLE BELOW THE SOFTENING POINT OF THE RESINOUS MATERIAL WHILE MAINTAINING VACUUM IN SAID TIRE.
Claim 2
Independent Claim
194 words
THE METHOD OF FORMING LAMINATED SAFETY GLASS COMPRISING, IN COMBINATION, ASSEMBLING INTO A SANDWICH TWO SHEETS OF GLASS OF SUBSTANTIALLY THE SAME SIZE AND SHAPE SO THAT THE EDGES OF SAID SHEETS ARE IN REGISTRY AND AN INTERMEDIATE SHEET OF THERMOPLASTIC RESINOUS MATERIAL WITH THE EDGES OF SAID RESINOUS SHEET PROJECTING OUTWARDLY BEYOND THE EDGES OF SAID GLASS SHEETS APPROXIMATELY 1/8 TO APPROXIMATELY 3/8 OF AN INCH, EMBRACING THE EDGES OF SAID SANDWICH WITH A HOLLOW TIRE OF AN ELASTOMERIC MATERIAL EXTENDING AROUND THE ENTIRE PERIPHERY OF SAID THREE SHEETS TO SEAL OFF THE PERIPHERAL EDGES OF SAID SANDWICH, SUBJECTING THE INTERIOR OF SAID TIRE TO A VACUUM FOR REMOVING AIR THEREFROM AND FROM BETWEEN SAID THREE SHEETS, RASING THE TEMPERATURE OF THE ASSEMBLE TO ONE SUFFICIENTLY HIGH TO SOFTEN THE RESINOUS MATERIAL WHILE SUBJECTING THE TIRE TO VACUUM TO COLLAPSE SAID TIRE INWARDLY AGAINST THE PERIPHERAL EDGES OF SAID THREE SHEETS TO DEFORM THE PROJECTION OF SAID RESINOUS SHEET INTO A BESD AGAINST THE EDGES OF SAID SHEETS OF GLASS AND COVERING THE CRACKS THEREBETWEEN, AND COOLING THE ASSEMBLE BELOW THE SOFTENING POINT OF THE RESINOUS MATERIAL WHILE MAINTAINING VACUUM IN SAID TIRE.
References Cited (Backward Citations)
US2948645A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-24 | 1970-04-25 | 1970-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-24 | 1974-04-25 | 1974-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-24 | 1978-04-25 | 1978-10-25 | $7700.00 | Window Closed / Lapsed |