Patent US3160266A successfully refreshed from Google Patents.
US3160266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scraping and sealing traveling grate side walls
Assignee: Allis Chalmers Corp
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Filing: 1963-02-14
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Granted: 1964-12-08
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Expires: 1983-02-14
Abstract
No abstract record available.
Inventors
- 👤 Ray C Edwards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:27
CPC Classifications
B; B65; B65G; B65G47/00; B65G47/52; B65G47/66
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A SIDE WALL SCRAPING DEVICE FOR TRAVELING GRATES AND THE LIKE, COMPRISING: A FLAT PLATE HAVING A TAPERED PORTION DEFINING A SCRAPER EDGE, A SUPPORT SHAFT HAVING A FREE END AND AN END CONNECTED TO SAID PLATE, A FIRST BIASING MEANS CONNECTED TO THE SHAFT AND OPERABLE TO YIELDABLY URGE THE PLATE AND SHAFT IN THE DIRECTION POINTED BY THE FREE END OF THE SHAFT, SECOND BIASING MEANS CONNECTED TO THE SHAFT AND OPERABLE TO YIELDABLY URGE THE PLATE TO PIVOT ABOUT THE AXIS OF THE SHAFT IN THE DIRECTION POINTED BY THE TAPERED PORTION, AND A CAM ASSEMBLY CONNECTED TO SAID SHAFT OPERABLE TO MOVE THE PLATE AND SHAFT AGAINST THE BIAS OF THE FIRST MEANS IN RESPONSE TO PIVOTAL MOVEMENT OF THE PLATE AND SHAFT AGAINST THE BIAS OF THE SECOND MEANS.
Claim 2
Dependent Claim
134 words
A SIDE WALL SCRAPING DEVICE FOR TRAVELING GRATES AND THE LIKE, COMPRISING: A FLAT PLATE HAVING A TAPERED PORTION DEFINING A SCRAPER EDGE, A SUPPORT SHAFT HAVING A FREE END AND AN END CONNECTED TO SAID PLATE, A FIRST BIASING MEANS CONNECTED TO THE SHAFT AND OPERABLE TO YIELDABLY URGE THE PLATE AND SHAFT IN THE DIRECTION POINTED BY THE FREE END OF THE SHAFT, SECOND BIASING MEANS CONNECTED TO THE SHAFT AND OPERABLE TO YIELDABLY URGE THE PLATE TO PIVOT ABOUT THE AXIS OF THE SHAFT IN THE DIRECTION POINTED BY THE TAPERED PORTION, AND A CAM ASSEMBLY CONNECTED TO SAID SHAFT OPERABLE TO MOVE THE PLATE AND SHAFT AGAINST THE BIAS OF THE FIRST MEANS IN RESPONSE TO PIVOTAL MOVEMENT OF THE PLATE AND SHAFT AGAINST THE BIAS OF THE SECOND MEANS.
References Cited (Backward Citations)
US2551123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-12-08 | 1968-06-08 | 1968-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-12-08 | 1972-06-08 | 1972-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-12-08 | 1976-06-08 | 1976-12-08 | $7700.00 | Window Closed / Lapsed |