US3605512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expansible pulley
Assignee: Motors Liquidation Co
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Filing: 1969-10-20
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Granted: 1971-09-20
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Expires: 1989-10-20
Abstract
Abstract A MOLDED RUBBER EXPANSIBLE PULLEY ARRANGEMENT WHEREIN THE PULLEY IS FORMED AS A SHAPED ENDLESS TUBE AND INCLUDES A VALVE AND STEM FOR FILLING THE TUBE TO A PREDETERMINED PRESSURE. THE PULLEY MAY BE MOUNTED IN A GROOVE ON THE DRIVE HUB OR BONDED THERETO AND IS COMPRESSED FOR THE MOUNTING OF A CONVENTIONAL V-BELT IN A GROOVE FORMED THEREON, THEREBY SERVING TO CONTINUALLY TENSION THE BELT AND TO AUTOMATICALLY CONTINUE THE TENSIONING PROCESS SHOULD THE BELT STRETCH.
Inventors
- 👤 John J Wetzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:54
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/32; F16H55/52; F16H55/54
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |