Patent US3311220A successfully refreshed from Google Patents.
US3311220A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable-pitch sprocket wheel
Assignee: ANSON IND Inc L
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Filing: 1964-11-25
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Granted: 1967-03-28
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Expires: 1984-11-25
Abstract
No abstract record available.
Inventors
- 👤 L Anson Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:19
CPC Classifications
F; F16; F16H; F16H55/00; F16H55/02; F16H55/30; F16H55/303
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A SPROCKET WHEEL CONSTRUCTION ESPECIALLY ADAPTED FOR USE WITH A CONVEYOR CHAIN, TO MAINTAIN SAID CHAIN DURING USE IN PREDETERMINED RELATION TO THE PITCH CIRCLE OF THE TEETH OF THE SPROCKET WHEEL, SAID WHEEL COMPRISING A DISK HAVING SPROCKET TEETH FORMED INTEGRALLY THEREWITH, A SHOULDER OUTSTANDING AT THE SIDES OF EACH TOOTH, AND A SEPARATE WEAR PAD SUPPORTED UPON THE RADIALLY OUTER SURFACE OF EACH SHOULDER FOR ENGAGEMENT BY THE CHAIN, THE CHAIN-ENGAGING SURFACE WHEREOF IS THEREBY LOCATED IN PREDETERMINED RELATION TO THE DESIGNED PITCH CIRCLE OF THE SPROCKET WHEEL''S TEETH.
Claim 2
Dependent Claim
91 words
A SPROCKET WHEEL CONSTRUCTION ESPECIALLY ADAPTED FOR USE WITH A CONVEYOR CHAIN, TO MAINTAIN SAID CHAIN DURING USE IN PREDETERMINED RELATION TO THE PITCH CIRCLE OF THE TEETH OF THE SPROCKET WHEEL, SAID WHEEL COMPRISING A DISK HAVING SPROCKET TEETH FORMED INTEGRALLY THEREWITH, A SHOULDER OUTSTANDING AT THE SIDES OF EACH TOOTH, AND A SEPARATE WEAR PAD SUPPORTED UPON THE RADIALLY OUTER SURFACE OF EACH SHOULDER FOR ENGAGEMENT BY THE CHAIN, THE CHAIN-ENGAGING SURFACE WHEREOF IS THEREBY LOCATED IN PREDETERMINED RELATION TO THE DESIGNED PITCH CIRCLE OF THE SPROCKET WHEEL''S TEETH.
References Cited (Backward Citations)
US2101685A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |