US3207589A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing all-glass multiple sheet glazing units
Assignee: Libbey Owens Ford Glass Co
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Filing: 1960-03-03
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Granted: 1965-09-21
•
Expires: 1980-03-03
Abstract
No abstract record available.
Inventors
- 👤 Charles H Cowley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:59
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/20; C03B23/24; C03B23/245
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
101 words
METHOD OF PRODUCING ALL-GLASS MULTIPLE SHEET GLAZING UNITS IN WHICH TWO SHEETS OF GLASS ARE SUPPORTED IN FIXED SPACED FACE-TO-FACE RELATION IN A VERTICAL POSITION AND CONVEYED ALONG A DEFINITE PATH, SAID METHOD COMPRISING DIRECTING HEAT ONTO THE OUTER SURFACES OF THE MARGINAL EDGE PORTIONS OF THE GLASS SHEETS OF SAID SHEETS ARE MOVED ALONG SAID PATH, SIMULTANEOUSLY DIRECTING ADDITIONAL HEAT BETWEEN THE SHEETS FROM THE OUTSIDE TO IMPINGE ON THE INNER SURFACES OF SAID MARGINAL EDGE PORTIONS, AND URGING THE HEATED MARGINAL EDGE PORTIONS OF THE SHEETS INTO FUSION CONTACT WITH ONE ANOTHER AS SAID SHEETS MOVING ALONG SAID PATH.
Claim 2
Dependent Claim
101 words
METHOD OF PRODUCING ALL-GLASS MULTIPLE SHEET GLAZING UNITS IN WHICH TWO SHEETS OF GLASS ARE SUPPORTED IN FIXED SPACED FACE-TO-FACE RELATION IN A VERTICAL POSITION AND CONVEYED ALONG A DEFINITE PATH, SAID METHOD COMPRISING DIRECTING HEAT ONTO THE OUTER SURFACES OF THE MARGINAL EDGE PORTIONS OF THE GLASS SHEETS OF SAID SHEETS ARE MOVED ALONG SAID PATH, SIMULTANEOUSLY DIRECTING ADDITIONAL HEAT BETWEEN THE SHEETS FROM THE OUTSIDE TO IMPINGE ON THE INNER SURFACES OF SAID MARGINAL EDGE PORTIONS, AND URGING THE HEATED MARGINAL EDGE PORTIONS OF THE SHEETS INTO FUSION CONTACT WITH ONE ANOTHER AS SAID SHEETS MOVING ALONG SAID PATH.
Claim 3
Dependent Claim
145 words
IN APPARATUS FOR PRODUCING ALL-GLASS MULTIPLE SHEET GLAZING UNITS, SUPPORTING AND CONVEYING MEANS ADAPTED TO SUPPORT TWO SHEETS OF GLASS IN SPACED FACE-TO-FACE RELATION IN A VERTICAL POSITION AND TO CONVEY THEM ALONG A DEFINITE PATH THROUGH A HEATING CHAMBER, HEATING MEANS LOCATED ALONG THE PATH OF MOVEMENT OF THE GLASS SHEETS, ONE ON EACH SIDE OF SAID PATH, AND EACH ADAPTED TO DIRECT HEAT ACROSS SAID PATH TO IMPINGE UPON THE OUTER SURFACE OF THE MARGINAL EDGE PORTIONS OF THE ADJACENT GLASS SHEET AND ALSO UPON THE INNER SURFACE OF THE MARGINAL EDGE PORTIONS OF THE GLASS SHEET REMOTE THEREFROM AS THE SHEETS MOVE ALONG SAID PATH, AND MEANS LOCATED FURTHER ALONG SAID PATH DOWNSTREAM FROM SAID HEATING MEANS FOR URGING THE HEATED MARGINAL EDGE PORTIONS OF THE SHEETS INTO FUSION CONTACT WITH ONE ANOTHER ALSO DURING MOVEMENT OF SAID SHEETS ALONG SAID PATH.
Claim 4
Dependent Claim
145 words
IN APPARATUS FOR PRODUCING ALL-GLASS MULTIPLE SHEET GLAZING UNITS, SUPPORTING AND CONVEYING MEANS ADAPTED TO SUPPORT TWO SHEETS OF GLASS IN SPACED FACE-TO-FACE RELATION IN A VERTICAL POSITION AND TO CONVEY THEM ALONG A DEFINITE PATH THROUGH A HEATING CHAMBER, HEATING MEANS LOCATED ALONG THE PATH OF MOVEMENT OF THE GLASS SHEETS, ONE ON EACH SIDE OF SAID PATH, AND EACH ADAPTED TO DIRECT HEAT ACROSS SAID PATH TO IMPINGE UPON THE OUTER SURFACE OF THE MARGINAL EDGE PORTIONS OF THE ADJACENT GLASS SHEET AND ALSO UPON THE INNER SURFACE OF THE MARGINAL EDGE PORTIONS OF THE GLASS SHEET REMOTE THEREFROM AS THE SHEETS MOVE ALONG SAID PATH, AND MEANS LOCATED FURTHER ALONG SAID PATH DOWNSTREAM FROM SAID HEATING MEANS FOR URGING THE HEATED MARGINAL EDGE PORTIONS OF THE SHEETS INTO FUSION CONTACT WITH ONE ANOTHER ALSO DURING MOVEMENT OF SAID SHEETS ALONG SAID PATH.
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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) | 1968-09-20 | 1969-03-22 | 1969-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-20 | 1973-03-22 | 1973-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-20 | 1977-03-22 | 1977-09-21 | $7700.00 | Window Closed / Lapsed |