US3297147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-cleaning pulley system
Assignee: AJ Sackett and Sons Co
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Filing: 1965-05-25
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Granted: 1967-01-10
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Expires: 1985-05-25
Abstract
No abstract record available.
Inventors
- 👤 Sr Walter J Sackett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:44
CPC Classifications
B; B65; B65G; B65G39/00; B65G39/02; B65G39/07; B65G39/073; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49453
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
IN COMBINATION WITH A CONVEYOR BELT FOR CONVEYING PULVERULENT MATERIALS, A SELF-CLEANING PULLEY FOR SAID CONVEYOR BELT, COMPRISING A CYLINDRICAL-LIKE STRUCTURE OF EXPANDED METAL SCREENING HAVING A MEDIAL DIAMETER LARGER THAN THE DIAMETER OF EACH OF ITS ENDS, SAID STRUCTURE BEING SELF-SUPORTING EXCEPT FOR A DISC MEMBER SPACED INWARDLY FROM EACH SAID ENDS, EACH SAID DISCMEMBER HAVING A HUB MOUNTED THEREON AND APERTURES FOR PROVIDING SIDEWAYS EGRESS FOR PULVERULENT MATERIAL ENTERING SAID SCREENING, AND A REINFORCEMENT RING FOR EACH SAID ENDS, WHEREBY SAID PULLEY IS LIGHT IN WEIGTH AND THEREFORE OF LOW INERTIA.
Claim 2
Dependent Claim
93 words
IN COMBINATION WITH A CONVEYOR BELT FOR CONVEYING PULVERULENT MATERIALS, A SELF-CLEANING PULLEY FOR SAID CONVEYOR BELT, COMPRISING A CYLINDRICAL-LIKE STRUCTURE OF EXPANDED METAL SCREENING HAVING A MEDIAL DIAMETER LARGER THAN THE DIAMETER OF EACH OF ITS ENDS, SAID STRUCTURE BEING SELF-SUPORTING EXCEPT FOR A DISC MEMBER SPACED INWARDLY FROM EACH SAID ENDS, EACH SAID DISCMEMBER HAVING A HUB MOUNTED THEREON AND APERTURES FOR PROVIDING SIDEWAYS EGRESS FOR PULVERULENT MATERIAL ENTERING SAID SCREENING, AND A REINFORCEMENT RING FOR EACH SAID ENDS, WHEREBY SAID PULLEY IS LIGHT IN WEIGTH AND THEREFORE OF LOW INERTIA.
References Cited (Backward Citations)
US2232623A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-09 | 1970-07-11 | 1971-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-09 | 1974-07-11 | 1975-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-09 | 1978-07-11 | 1979-01-10 | $7700.00 | Window Closed / Lapsed |