Patent US4874214A successfully refreshed from Google Patents.
US3676030A
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US
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Apparatus for lubrication of compression tools for powder metallurgical purposes
Assignee: Nukem GmbH
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Filing: 1969-10-22
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Granted: 1972-07-11
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Expires: 1989-10-22
Abstract
Abstract THERE IS PROVIDED AN APPARATUS FOR THE LUBRICATION OF COMPRESSION TOOLS FOR POWER METALLURGICAL PURPOSES COMPRISING A LOWER DIE ADAPTED TO SUPPLY LUBRICANT FILM, A GUIDE FOR THE LOWER PART HAVING A SLIGHTLY LARGER DIAMETER TO INSURE PRODUCTION OF A UNIFORM LUBRICANT FILM AND A FOOT ON THE OPPOSITE END OF THE DIE POSITIONED WITHIN A SLIGHTLY LARGER DISTANCE RING WHICH IS HELD IN POSITION BY A FIXING NUT, THE SPACE BETWEEN THE DIE FOOT AND FIXING NUT COMPENSATING FOR PRODUCTION ERRORS IN THE AXIS PARALLELISM OF THE DIE BORE.
Inventors
- 👤 Horst Roepenack
- 👤 Dieter Nowak
- 👤 Fritz Ploger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:31
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/0005; B30B15/0011; B22; B22F; B22F3/00; B22F3/02; B30B15/02; B30B15/026
Claims Analysis
Total Claims: 0
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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) | 1975-07-11 | 1976-01-10 | 1976-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-11 | 1980-01-10 | 1980-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-11 | 1984-01-10 | 1984-07-11 | $7700.00 | Window Closed / Lapsed |