Patent US3256080A successfully refreshed from Google Patents.
US3256080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for the production of curved and hardened panes of glass
Assignee: GLACERIES REUNIES SA
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Filing: 1961-08-15
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Granted: 1966-06-14
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Expires: 1981-08-15
Abstract
No abstract record available.
Inventors
- 👤 Jean Paul Leon Ghislai Vranken
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:28
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/03; C03B23/031; C03B27/00; C03B27/04; C03B27/052
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
187 words
APPARATUS FOR FORMING AND TEMPERING GLASS SHEETS COMPRISING: TWO COOPERATING FRAME MEMBERS ARRANGED FOR SIMULTANEOUS ENGAGEMENT WITH OPPOSITE SIDES OF A SOFTENED GLASS SHEET CONTINUOUSLY SUBSTANTIALLY THROUGHOUT THE ENTIRE PERIPHERY OF SAID SHEET, BOTH SURFACE AREAS AT OPPOSITE SIDES OF SAID SHEET WITHIN SAID PERIPHERY BEING FREE AND FULLY EXPOSED, SAID FRAME MEMBERS BEING SHAPED TO IMPART A CURVED CONFIGURATION TO SAID PERIPHERY OF SAID SHEET BY PRESSING SAID PERIPHERY THEREBETWEEN, THE CENTRAL PORTION OF SAID SHEET EXTENDING WITHIN SAID EXPOSED AREAS BEING CURVED BY THE CURVING OF SAID PERIPHERY, SAID FRAME MEMBERS BEING SEPARABLE TO AN EXTENT SUFFICIENT TO PERMIT THE FREE PASSAGE OF SAID SHEET THEREBETWEEN PRIOR TO ENGAGEMENT OF SAID SHEET BY SAID FRAME MEMBERS; AIR BLOWING MEANS CONNECTED TO SAID FRAME MEMBERS FOR MOVEMENT THEREWITH, SAID BLOWING MEANS BEING POSITIONED TO DIRECT A FLOW OF AIR UPON SAID EXPOSED AREAS FOR TEMPERING SAID SHEET WITH SAID SHEET HELD BETWEEN SAID FRAME MEMBERS; AND PRESS MEANS CONNECTED TO SAID FRAME MEMBERS FOR SELECTIVELY PRESSING SAID FRAME MEMBERS INTO ENGAGEMENT WITH SAID PERIPHERY OF SAID SHEET AND SEPARATING SAID FRAME MEMBERS OF FREE SAID SHEET.
Claim 2
Dependent Claim
187 words
APPARATUS FOR FORMING AND TEMPERING GLASS SHEETS COMPRISING: TWO COOPERATING FRAME MEMBERS ARRANGED FOR SIMULTANEOUS ENGAGEMENT WITH OPPOSITE SIDES OF A SOFTENED GLASS SHEET CONTINUOUSLY SUBSTANTIALLY THROUGHOUT THE ENTIRE PERIPHERY OF SAID SHEET, BOTH SURFACE AREAS AT OPPOSITE SIDES OF SAID SHEET WITHIN SAID PERIPHERY BEING FREE AND FULLY EXPOSED, SAID FRAME MEMBERS BEING SHAPED TO IMPART A CURVED CONFIGURATION TO SAID PERIPHERY OF SAID SHEET BY PRESSING SAID PERIPHERY THEREBETWEEN, THE CENTRAL PORTION OF SAID SHEET EXTENDING WITHIN SAID EXPOSED AREAS BEING CURVED BY THE CURVING OF SAID PERIPHERY, SAID FRAME MEMBERS BEING SEPARABLE TO AN EXTENT SUFFICIENT TO PERMIT THE FREE PASSAGE OF SAID SHEET THEREBETWEEN PRIOR TO ENGAGEMENT OF SAID SHEET BY SAID FRAME MEMBERS; AIR BLOWING MEANS CONNECTED TO SAID FRAME MEMBERS FOR MOVEMENT THEREWITH, SAID BLOWING MEANS BEING POSITIONED TO DIRECT A FLOW OF AIR UPON SAID EXPOSED AREAS FOR TEMPERING SAID SHEET WITH SAID SHEET HELD BETWEEN SAID FRAME MEMBERS; AND PRESS MEANS CONNECTED TO SAID FRAME MEMBERS FOR SELECTIVELY PRESSING SAID FRAME MEMBERS INTO ENGAGEMENT WITH SAID PERIPHERY OF SAID SHEET AND SEPARATING SAID FRAME MEMBERS OF FREE SAID SHEET.
Claim 3
Independent Claim
82 words
THE METHOD OF PRODUCING A CURVED GLASS SHEET WHICH COMPRISES THE STEPS OF: HEATING SAID SHEET TO SOFTEN THE SAME; PRESSING OPPOSITE SIDE OF EFFECTIVELY THE ENTIRE PERIPHERY OF SAID SHEET WHILE SOFTENED TO IMPART THE DESIRED CURVATURE THERETO WHILE MAINTAINING ALL OF THE PORTION OF SAID SHEET WITHIN SAID PERIPHERY EXPOSED; TEMPERING SAID SHEET BY DIRECTING A FLOW OF COOLING AIR UPON SAID EXPOSED PORTION THEREOF WHILE MAINTAINING SAID PERIPHERY PRESSED; AND FREEING SAID SHEET AFTER COMPLETION OF SAID TEMPERING STEP.
Claim 4
Independent Claim
82 words
THE METHOD OF PRODUCING A CURVED GLASS SHEET WHICH COMPRISES THE STEPS OF: HEATING SAID SHEET TO SOFTEN THE SAME; PRESSING OPPOSITE SIDE OF EFFECTIVELY THE ENTIRE PERIPHERY OF SAID SHEET WHILE SOFTENED TO IMPART THE DESIRED CURVATURE THERETO WHILE MAINTAINING ALL OF THE PORTION OF SAID SHEET WITHIN SAID PERIPHERY EXPOSED; TEMPERING SAID SHEET BY DIRECTING A FLOW OF COOLING AIR UPON SAID EXPOSED PORTION THEREOF WHILE MAINTAINING SAID PERIPHERY PRESSED; AND FREEING SAID SHEET AFTER COMPLETION OF SAID TEMPERING STEP.
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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) | 1969-06-13 | 1969-12-13 | 1970-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-06-13 | 1973-12-13 | 1974-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-06-13 | 1977-12-13 | 1978-06-14 | $7700.00 | Window Closed / Lapsed |