Patent US3274953A successfully refreshed from Google Patents.
US3274953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conveyor control devices
Assignee: United Shoe Machinery Corp
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Filing: 1964-06-02
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Granted: 1966-09-27
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Expires: 1984-06-02
Abstract
No abstract record available.
Inventors
- 👤 Edward S Babson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:27
CPC Classifications
B; B61; B61B; B61B10/00; B61B10/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
A CONVEYOR SYSTEM COMPRISING A TOW CHAIN EXTENDING AROUND A DIRECTION CHANGING WHEEL TO FORM SEPARATE CONVEYOR RUNS, A GUIDE PLATE DISPOSED OVER SAID CHAIN SHAPED TO PROVIDE A GUIDE RIDGE AND A CAMMING SURFACE IN BOTH SIDES OF THE GUIDE RIDGE WHEREBY AN ARTICLE CARRYING DEVICE HAVING CHAIN ENGAGING MEANS AND SPRING BIASED DETENT MEANS MAY BE ENGAGED AND DISENGAGED WITH THE TOW CHAIN BY LATERAL MOVEMENT TOWARD AND AWAY FROM THE CHAIN, SAID GUIDE PLATE EXTENDING OVER EACH RUN AND EXTENDING IN SPACED RELATION TO THE WHEEL, AND A GUIDE COVER DISPOSED OVER THE WHEEL, SAID COVER
Claim 2
Dependent Claim
99 words
A CONVEYOR SYSTEM COMPRISING A TOW CHAIN EXTENDING AROUND A DIRECTION CHANGING WHEEL TO FORM SEPARATE CONVEYOR RUNS, A GUIDE PLATE DISPOSED OVER SAID CHAIN SHAPED TO PROVIDE A GUIDE RIDGE AND A CAMMING SURFACE IN BOTH SIDES OF THE GUIDE RIDGE WHEREBY AN ARTICLE CARRYING DEVICE HAVING CHAIN ENGAGING MEANS AND SPRING BIASED DETENT MEANS MAY BE ENGAGED AND DISENGAGED WITH THE TOW CHAIN BY LATERAL MOVEMENT TOWARD AND AWAY FROM THE CHAIN, SAID GUIDE PLATE EXTENDING OVER EACH RUN AND EXTENDING IN SPACED RELATION TO THE WHEEL, AND A GUIDE COVER DISPOSED OVER THE WHEEL, SAID COVER
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |