Patent US2711264A successfully refreshed from Google Patents.
Patent US3563721A successfully refreshed from Google Patents.
US3563721A
Expired / Lapsed
US
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Glass sheet supporting press bending and conveying apparatus
Assignee: Pilkington North America Inc
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Filing: 1968-05-24
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Granted: 1971-02-16
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Expires: 1988-05-24
Abstract
Abstract CONVEYOR ROLLS FOR SUPPORTING AND CONVEYING GLASS SHEETS IN A PRESS BENDING APPARATUS. EACH ROLL COMPRISES A DRIVEN SHAFT AND A SHEET SUPPORTING SLEEVE SURROUNDING SAID SHAFT AND ADAPTED FOR ROTATION WITH OR RELATIVE TO SAID SHAFT. THE SHAFT HAS LIMITED FRICTION DRIVING ENGAGEMENT WITH THE SLEEVE WHICH PERMITS THE ROLL TO ADVANCE AN UNRESTRAINED SHEET SUPPORTED THEREON BUT ALLOW SLIPPAGE TO OCCUR BETWEEN THE SLEEVE AND THE SHAFT WHEN MOVEMENT OF THE SHEET IS RESTRAINED. D R A W I N G
Inventors
- 👤 George F Ritter Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:14
CPC Classifications
C; C03; C03B; C03B23/00; C03B23/02; C03B23/023; C03B23/03; C03B35/00; C03B35/14; C03B35/16; C03B35/18; C03B35/181; C03B2225/00; C03B2225/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |