Patent US3610083A successfully refreshed from Google Patents.
US3610083A
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US
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Vertical shearing machine of the interchangeable knife assembly type
Assignee: Hitachi Ltd
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Filing: 1969-09-12
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Granted: 1971-10-05
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Expires: 1989-09-12
Abstract
Abstract A VERTICAL SHEARING MACHINE OF THE INTERCHANGEABLE KNIFE ASSEMBLY TYPE COMPRISING A KNIFE ASSEMBLY INCLUING A MOVABLE UPPER KNIFE AND A FIXED LOWER KNIFE MOUNTED ON RESPECTIVE HOLDRS AND ADAPTED TO BE MOUNTED IN A SHERING POSITION IN A HOUSING AND REMOVED THEREFROM BY ITSELY FOR REPLACEMENT BY ANOTHER KNIFE ASSEMBLY, THE HOUSING IS FORMED WITH AN OPENING THERETHROUGH AND THE INNER SIDES OF THE HOUSING DEFINING SAID OPENING SERVE AS GUIDE SURFACES FOR THE KNIFE ASSEMBLY WHEN THE LATTER IS MOUNTED OR REMOVED AND AS SLIDING SURFACES ALONG WHICH THE UPPER KNIFE HOLDER MOVES IN SLIDING MOTION WHEN A SHEARING OPERATION IS PERFORMED.
Inventors
- 👤 Tetutaro Yasuda
- 👤 Tsuneo Nakanishi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:21
CPC Classifications
B; B23; B23D; B23D35/00; B23D35/008; B23D15/00; Y; Y10; Y10T; Y10T83/00; Y10T83/566; Y10T83/5669; Y10T83/5787; Y10T83/5805; Y10T83/748; Y10T83/7487; Y10T83/758; Y10T83/869; Y10T83/8748; Y10T83/8821; Y10T83/8824; Y10T83/929; Y10T83/9457; Y10T83/9473; Y10T83/9478
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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |