Patent US3474026A successfully refreshed from Google Patents.
Patent US3225896A successfully refreshed from Google Patents.
US3225896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Position control device for conveyor chain dogs
Assignee: United States Steel Corp
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Filing: 1963-02-19
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Granted: 1965-12-28
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Expires: 1983-02-19
Abstract
No abstract record available.
Inventors
- 👤 Glenn N Krueger
- 👤 John J Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:05
CPC Classifications
B; B21; B21B; B21B43/00; B21B43/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
IN A CHAIN CONVEYOR OF THE PUSHER DOG TYPE INCLUDING COUNTERWEIGHTED PUSHER DOGS MOUNTED ON A CONVEYOR CHAIN FOR PIVOTAL MOVEMENT TO AND FROM OPERATIVE PUSHING POSITIONS AND A SPROCKET AT ONE END OF SAID CONVEYOR OVER WHICH SAID CHAIN TRAVELS, THE COMBINATION THEREWITH COMPRISING COOPERATING PARTS ON SAID SPROCKET AND DOGS RESPECTIVELY FOR PREVENTING PIVOTAL MOVEMENT OF SAID DOGS RELATIVE TO SAID CHAIN AND SPROCKET DURING ARCUATE MOVEMENT OF THE RESPECTIVE PORTIONS OF SAID CHAINS ON WHICH SAID DOGS ARE SUPPORTED OVER SAID SPROCKETS, SAID SPROCKET PART COMPRISING A LUG MOUNTED FOR RADIAL MOVEMENT ON
Claim 2
Dependent Claim
96 words
IN A CHAIN CONVEYOR OF THE PUSHER DOG TYPE INCLUDING COUNTERWEIGHTED PUSHER DOGS MOUNTED ON A CONVEYOR CHAIN FOR PIVOTAL MOVEMENT TO AND FROM OPERATIVE PUSHING POSITIONS AND A SPROCKET AT ONE END OF SAID CONVEYOR OVER WHICH SAID CHAIN TRAVELS, THE COMBINATION THEREWITH COMPRISING COOPERATING PARTS ON SAID SPROCKET AND DOGS RESPECTIVELY FOR PREVENTING PIVOTAL MOVEMENT OF SAID DOGS RELATIVE TO SAID CHAIN AND SPROCKET DURING ARCUATE MOVEMENT OF THE RESPECTIVE PORTIONS OF SAID CHAINS ON WHICH SAID DOGS ARE SUPPORTED OVER SAID SPROCKETS, SAID SPROCKET PART COMPRISING A LUG MOUNTED FOR RADIAL MOVEMENT ON
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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |