US3608412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tread slitter
Assignee: Goodyear Tire and Rubber Co
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Filing: 1970-01-19
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Granted: 1971-09-28
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Expires: 1990-01-19
Abstract
Abstract A MACHINE FOR SEPARATING A PAIR OF SIDEWALLS FROM AN EXTRUDED PIECE OF TREAD INCLUDING THE SIDEWALLS. THE MASCHINE HAS A FEED CONVEYOR FOR CARRYING THE EXTRUDED TREAD TO A CUTTER WHERE THE SIDEWALLS ARE CUT FROM THE TREAD, AND A NUMBER OF DISCHARGE CONVEYORS FOR REMOVING THE INDIVIDUAL PIECES OF TREAD AND SIDEWALL FROM THE MACHINE AFTER THE CUTTING OPERATION IS COMPLETED. A MECHANISM IS PROVIDED FOR ENGAGING THE TREAD MOVING ON THE FEED CONVEYOR, AND GUIDING IT THROUGH THE CUTTER AND ON TO THE DISCHARGE CONVEYOR. THE CUTTER AND GUIDE MECHANISM ARE MOUNTED ON AN OVERHEAD TRACKWAY AND ARE RETRACTABLE FROM THE CONVEYORS, IF THERE IS A MALFUNCTION OF THE MACHINE.
Inventors
- 👤 William D Braden
- 👤 Leonard A Vandale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:21
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/02; B29; B29D; B29D30/00; B29D30/06; B29D30/52; Y; Y10; Y10T; Y10T83/00; Y10T83/202; Y10T83/2074; Y10T83/2087; Y10T83/263; Y10T83/647; Y10T83/6584; Y10T83/6587; Y10T83/6601; Y10T83/6603; Y10T83/768; Y10T83/7684; Y10T83/7701; Y10T83/7722; Y10T83/7726; Y10T83/7793
Claims Analysis
Total Claims: 0
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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) | 1974-09-27 | 1975-03-29 | 1975-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-27 | 1979-03-29 | 1979-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-27 | 1983-03-29 | 1983-09-28 | $7700.00 | Window Closed / Lapsed |