US3086375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing multiple glass sheet glazing units
Assignee: Libbey Owens Ford Glass Co
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Filing: 1959-11-05
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Granted: 1963-04-23
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Expires: 1979-11-05
Abstract
No abstract record available.
Inventors
- 👤 Mainz Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 18:42
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/20; C03B23/24; C03B23/245
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
130 words
APPARATUS FOR MAKING MULTIPLE GLASS SHEET GLAZING UNITS, COMPRISING MEANS FOR SUPPORTING A PAIR OF GLASS SHEETS IN VERTICAL, SPACED FACE-TO-FACE RELATION, MEANS DISPOSED ADJACENT SAID SUPPORTING MEANS FOR HEATING THE EDGE PORTIONS OF THE GLASS SHEETS FROM THE OUTSIDE TO BENDING TEMPERATURE, FORMING MEANS ENGAGING THE HEATED EDGE PORTIONS PROGRESSIVELY FROM ONE END OF THE SHEETS TO THE OPPOSITE END AND OPERABLE TO BRING THE HEATED EDGE PORTIONS INTO FUSION CONTACT TO FORM AN EDGE WALL, A GAS BURNER DISPOSED ADJACENT SAID FORMING MEANS FOR DIRECTING HEAT ALONG THE INNER SURFACE OF THE EDGE WALL AS IT IS FORMED, AND MEANS MOUNTED ADJACENT SAID FORMING MEANS AND SAID GAS BURNER FOR INTRODUCING DRY AIR UNDER PRESSURE INTO THE SPACE BETWEEN THE GLASS SHEETS DURING FORMATION OF SAID EDGE WALL.
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) | 1966-04-22 | 1966-10-22 | 1967-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-22 | 1970-10-22 | 1971-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-22 | 1974-10-22 | 1975-04-23 | $7700.00 | Window Closed / Lapsed |