US3365286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for tempering of glass between cold plates
Assignee: Compagnie de Saint Gobain SA
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Filing: —
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Granted: 1968-01-23
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Expires: 1985-01-23
Abstract
No abstract record available.
Inventors
- 👤 Maurice Nedelec
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:15
CPC Classifications
C; C03; C03B; C03B27/00; C03B27/004
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
57 words
A METHOD OF TEMPERING A GLASS SHEET WHICH COMPRISES HEATING THE SHEET TO ABOUT SOFTENING TEMPERATURE, MOVING THE HOT SHEET HORIZONTALLY ON A CUSHION OF AIR INTO POSITION BETWEEN A PAIR OF COLD PLATES, STOPPING IT BETWEEN THE PLATES, BRINGING THE PLATES INTO CONTACT WITH THE SHEET, AND CONTINUOUSLY COOLING THE PLATES UNTIL THE SHEET IS TEMPERED.
Claim 2
Independent Claim
57 words
A METHOD OF TEMPERING A GLASS SHEET WHICH COMPRISES HEATING THE SHEET TO ABOUT SOFTENING TEMPERATURE, MOVING THE HOT SHEET HORIZONTALLY ON A CUSHION OF AIR INTO POSITION BETWEEN A PAIR OF COLD PLATES, STOPPING IT BETWEEN THE PLATES, BRINGING THE PLATES INTO CONTACT WITH THE SHEET, AND CONTINUOUSLY COOLING THE PLATES UNTIL THE SHEET IS TEMPERED.
Claim 3
Dependent Claim
144 words
APPARATUS FOR THE SUPPORT, COOLING AND TEMPERING OF SHEETS IN HORIZONTAL POSITION, COMPRISING, LOWER AND UPPER SUPERPOSED HOLLOW, HEAT CONDUCTIVE PLATES HAVING SUBSTANTIALLY CONTINUOUS, CONFRONTING SURFACES, ONE SAID PLATE BEING FIXED IN HORIZONTAL POSITION, MEANS TO TRANSLATE THE OTHER SAID PLATE VERTICALLY, FROM A FIRST POSITION WHEREIN SAID PLATES ARE VERTICALLY SPACED, TO A SECOND POSITION WHEREIN SAID PLATES ARE IN CONTACT WITH THE SHEET TO BE TEMPERED, A PLURALITY OF CONDUITS DISTRIBUTED OVER THE AREA OF ITS UPPER SURFACE AND PASSING THROUGH THE LOWER HOLLOW PLATE, MEANS TO SUPPLY ALL SAID CONDUITS WITH AIR UNDER PRESSURE TO SUPPORT A SHEET THEREOVER, UPON A GASEOUS CUSHION, AND CIRCULATING MEANS TO FEED COOLANT INTO THE HOLLOW PLATES AND TO EXHAUST THE SAME FROM THE INTERIOR OF EACH SAID HOLLOW PLATE, WHEN SAID PLATES ARE IN SURFACE CONTACT WITH RESPECTIVE FACES OF A SHEET EMPLACED THEREBETWEEN.
Claim 4
Dependent Claim
144 words
APPARATUS FOR THE SUPPORT, COOLING AND TEMPERING OF SHEETS IN HORIZONTAL POSITION, COMPRISING, LOWER AND UPPER SUPERPOSED HOLLOW, HEAT CONDUCTIVE PLATES HAVING SUBSTANTIALLY CONTINUOUS, CONFRONTING SURFACES, ONE SAID PLATE BEING FIXED IN HORIZONTAL POSITION, MEANS TO TRANSLATE THE OTHER SAID PLATE VERTICALLY, FROM A FIRST POSITION WHEREIN SAID PLATES ARE VERTICALLY SPACED, TO A SECOND POSITION WHEREIN SAID PLATES ARE IN CONTACT WITH THE SHEET TO BE TEMPERED, A PLURALITY OF CONDUITS DISTRIBUTED OVER THE AREA OF ITS UPPER SURFACE AND PASSING THROUGH THE LOWER HOLLOW PLATE, MEANS TO SUPPLY ALL SAID CONDUITS WITH AIR UNDER PRESSURE TO SUPPORT A SHEET THEREOVER, UPON A GASEOUS CUSHION, AND CIRCULATING MEANS TO FEED COOLANT INTO THE HOLLOW PLATES AND TO EXHAUST THE SAME FROM THE INTERIOR OF EACH SAID HOLLOW PLATE, WHEN SAID PLATES ARE IN SURFACE CONTACT WITH RESPECTIVE FACES OF A SHEET EMPLACED THEREBETWEEN.
References Cited (Backward Citations)
GB505189A
Cited
US2677918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |