US3289487A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power drive pulley
Assignee: Individual
•
Filing: 1964-07-15
•
Granted: 1966-12-06
•
Expires: 1984-07-15
Abstract
No abstract record available.
Inventors
- 👤 Clarence W Weedfall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:42
CPC Classifications
G; G11; G11B; G11B19/00; G11B19/20; G11B19/2009; G11B19/2018; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/1987; Y10T74/19893; Y10T74/19907
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A IDLER WHEEL FOR PHONOGRAPH TURNTABLES, COMPRISING A CYLINDRICAL HUB HAVING A BORE THERETHROUGH, AN INNER ANNULAR MEMBER TO NEOPRENE OF A DUROMETER BETWEEN 20 AND 25 MOUNTED ON AND EXTENDING RADIALLY FROM SAID HUB, SAID MEMBER HAVING A CYLINDRICAL PORTION WITH AN ANNULAR GROOVE ON THE INNER SIDE ADJACENT SAID HUB, A RIGID ANNULAR MEMBER HAVING INNER AND OUTER RADIAL FLANGES IN OFF-SET REALTION, EACH FLANGE HAVING A PLURALITY OF HOLES, AND AN OUTER ANNULAR AND BEING CONSTRUCTED OUTER FLANGE OF SAID RIGID MEMBER AND BEING CONSTRUCTED OF RELATIVELY FIRM AND WEAR RESISTANT NEOPRENE MATERIAL OF A DUROMETER BETWEEN 60 AND 65, SAID INNER AND OUTER RESILIENT ANNULAR MEMBERS OVERLAPPING THE REPECTIVE EDGES OF SAID RIGID MEMBER AND EMBRACING SAID HOLES.
Claim 2
Dependent Claim
122 words
A IDLER WHEEL FOR PHONOGRAPH TURNTABLES, COMPRISING A CYLINDRICAL HUB HAVING A BORE THERETHROUGH, AN INNER ANNULAR MEMBER TO NEOPRENE OF A DUROMETER BETWEEN 20 AND 25 MOUNTED ON AND EXTENDING RADIALLY FROM SAID HUB, SAID MEMBER HAVING A CYLINDRICAL PORTION WITH AN ANNULAR GROOVE ON THE INNER SIDE ADJACENT SAID HUB, A RIGID ANNULAR MEMBER HAVING INNER AND OUTER RADIAL FLANGES IN OFF-SET REALTION, EACH FLANGE HAVING A PLURALITY OF HOLES, AND AN OUTER ANNULAR AND BEING CONSTRUCTED OUTER FLANGE OF SAID RIGID MEMBER AND BEING CONSTRUCTED OF RELATIVELY FIRM AND WEAR RESISTANT NEOPRENE MATERIAL OF A DUROMETER BETWEEN 60 AND 65, SAID INNER AND OUTER RESILIENT ANNULAR MEMBERS OVERLAPPING THE REPECTIVE EDGES OF SAID RIGID MEMBER AND EMBRACING SAID HOLES.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |