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US2714567A
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Preliminary pressing of bent laminated glass
Assignee: PPG Industries Inc
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Filing: 1952-10-17
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Granted: 1955-08-02
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Expires: 1972-10-17
Abstract
No abstract record available.
Inventors
- 👤 Cravener Earl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:33
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/02; B32; B32B; B32B17/00; B32B17/06; B32B17/10; B32B17/10005; B32B17/10807; B32B17/10816; B32B17/10825; B32B17/10834; B32B17/10844; B32B17/10853; B32B17/10871; B32B37/00; B32B37/06; B32B37/10; B32B37/1018
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
APPARATUS FOR THE PRELIMINARY PRESSING OF BENT LAMINATED ASSEMBLIES COMPRISING TWO SHEETS OF GLASS AND AN INTERPOSED SHEET OF PLASTIC MATERIAL WHICH ARE TO BE BONDED TOGETHER INTO A UNITARY STRUCTURE BY THE ACTION OF HEAT AND PRESSURE, WHICH APPARATUS COMPRISES, IN COMBINATION, A BAG SUBSTANTIALLY IMPREVIOUS TO AIR, THE WALLS OF THE BAG COMPRISING LAYERS OF ELECTRICALLY CONDUCTIVE RUBBER, MEANS FOR QUICKLY OPENING AND HOLDING OPEN THE OPENABLE END OF THE BAG TO INSERT AND REMOVE LAMINATED ASSEMBLIES AND FOR QUICKLY CLOSING AND CLAMPING THE SAID END OF THE BAG TO SEAL THE BAG AFTER A LAMINATED ASSEMBLY HAS BEEN INSERTED THEREIN, A HOSE CONNECTION TO THE BAG, MEANS FOR EVACUATING AIR FROM THE BAG THROUGH THE HOSE CONNECTION, AND ELECTRICAL LEADS FOR NECTED TO THE ELECTRICALLY CONDUCTIVE RUBBER LAYERS FOR PASSING CURRENT THROUGH THE WALLS OF THE BAG TO HEAT A LAMINATED ASSEMBLY CONTAINED THEREIN.
Claim 2
Dependent Claim
147 words
APPARATUS FOR THE PRELIMINARY PRESSING OF BENT LAMINATED ASSEMBLIES COMPRISING TWO SHEETS OF GLASS AND AN INTERPOSED SHEET OF PLASTIC MATERIAL WHICH ARE TO BE BONDED TOGETHER INTO A UNITARY STRUCTURE BY THE ACTION OF HEAT AND PRESSURE, WHICH APPARATUS COMPRISES, IN COMBINATION, A BAG SUBSTANTIALLY IMPREVIOUS TO AIR, THE WALLS OF THE BAG COMPRISING LAYERS OF ELECTRICALLY CONDUCTIVE RUBBER, MEANS FOR QUICKLY OPENING AND HOLDING OPEN THE OPENABLE END OF THE BAG TO INSERT AND REMOVE LAMINATED ASSEMBLIES AND FOR QUICKLY CLOSING AND CLAMPING THE SAID END OF THE BAG TO SEAL THE BAG AFTER A LAMINATED ASSEMBLY HAS BEEN INSERTED THEREIN, A HOSE CONNECTION TO THE BAG, MEANS FOR EVACUATING AIR FROM THE BAG THROUGH THE HOSE CONNECTION, AND ELECTRICAL LEADS FOR NECTED TO THE ELECTRICALLY CONDUCTIVE RUBBER LAYERS FOR PASSING CURRENT THROUGH THE WALLS OF THE BAG TO HEAT A LAMINATED ASSEMBLY CONTAINED THEREIN.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-08-01 | 1959-01-31 | 1959-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-08-01 | 1963-01-31 | 1963-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-08-01 | 1967-01-31 | 1967-08-02 | $7700.00 | Window Closed / Lapsed |