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US3102016A
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Glass bending method
Assignee: PPG Industries Inc
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Filing: 1960-04-04
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Granted: 1963-08-27
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Expires: 1980-04-04
Abstract
No abstract record available.
Inventors
- 👤 Arthur F Donovan
- 👤 Henri T Jacquot
- 👤 Ronald E Richardson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:37
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/025; C03B23/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A METHOD OF BENDING GLASS SHEETS COMPRISING SUBJECTING A GLASS SHEET TO BE BENT TO GLASS SOFTENING TEMPERATURE TO HEAT-SOFTEN THE SHEET AND APPLYING A BENDING FORCE TO A PORTION OF THE HEAT-SOFTENED SHEET TO BEND SAID PORTION INTO A CURVED ORIENTATION, THE STEPS OF INITIALLY EMPLOYING A MAXIMUM NET FORCE BIASING SaID SHEET PORTION TOWARDS SaID CURVED ORIENTATION, AND, WHEN SAID SHEET PORTION ATTAINS A POSITION PART WAY TOWARDS SAID CURVED ORIENTATION, SUDDENLY REDUCING THE NET FORCE APPLIED THERETO TO A SMALLER NET FORCE BIASING SaID SHEET PORTION TOWARD SAID CURVED ORIENTATION.
Claim 2
Dependent Claim
94 words
IN A METHOD OF BENDING GLASS SHEETS COMPRISING SUBJECTING A GLASS SHEET TO BE BENT TO GLASS SOFTENING TEMPERATURE TO HEAT-SOFTEN THE SHEET AND APPLYING A BENDING FORCE TO A PORTION OF THE HEAT-SOFTENED SHEET TO BEND SAID PORTION INTO A CURVED ORIENTATION, THE STEPS OF INITIALLY EMPLOYING A MAXIMUM NET FORCE BIASING SaID SHEET PORTION TOWARDS SaID CURVED ORIENTATION, AND, WHEN SAID SHEET PORTION ATTAINS A POSITION PART WAY TOWARDS SAID CURVED ORIENTATION, SUDDENLY REDUCING THE NET FORCE APPLIED THERETO TO A SMALLER NET FORCE BIASING SaID SHEET PORTION TOWARD SAID CURVED ORIENTATION.
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) | 1966-08-26 | 1967-02-25 | 1967-08-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-26 | 1971-02-25 | 1971-08-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-26 | 1975-02-25 | 1975-08-27 | $7700.00 | Window Closed / Lapsed |