Patent US2798255A successfully refreshed from Google Patents.
US2798255A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powder pressing machine
Assignee: Fansteel Inc
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Filing: 1954-02-08
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Granted: 1957-07-09
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Expires: 1974-02-08
Abstract
No abstract record available.
Inventors
- 👤 John D Winters
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:59
CPC Classifications
B; B30; B30B; B30B11/00; B30B11/02; B30B11/08; B30B11/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
153 words
IN A MACHINE FOR COMPACTING METAL POWDER AGAINST AN ARTICLE, A TURNTABLE PROVIDED WITH A PLURALITY OF EQUALLY SPACED OPENINGS ARRANGED CIRCUMFERENTIALLY OF SAID TURNTABLE, A POST VERTICALLY SLIDABLE IN EACH OF SAID OPENINGS, A CAM BELOW SAID OPENINGS ENGAGING THE BOTTOM OF EACH OF SAID POSTS TO SUPPORT SAID POSTS AT EITHER OF TWO VERTICAL LEVELS, SAID TURNTABLE BEING ROTATABLE TO MOVE SAID POSTS IN A CIRCULAR PATH, MEANS TO ROTATE SAID TURNTABLE WITH UNIFORM RESTS AT EQUALLY SPACED STATIONS, MEANS PROJECTING LATERALLY FROM SAID POST, MEANS AT ONE OF SAID STATIONS FOR DEPRESSING SAID POST FROM ITS HIGHER LEVEL, A LATCH ENGAGING SAID LATERALLY PROJECTING MEANS TO PREVENT RETURN OF SAID POST TO ITS HIGHER LEVEL UPON RELEASE OF SAID DEPRESSING MEANS, AND ANOTHER CAM ENGAGING SAID LATERALLY PROJECTING MEANS TO MOVE SAID POST TO ITS LOWER LEVEL ON THE FIRST CAM AS SAID TURNTABLE MOVES IT TO NEXT SUCCEEDING STATION.
Claim 2
Dependent Claim
153 words
IN A MACHINE FOR COMPACTING METAL POWDER AGAINST AN ARTICLE, A TURNTABLE PROVIDED WITH A PLURALITY OF EQUALLY SPACED OPENINGS ARRANGED CIRCUMFERENTIALLY OF SAID TURNTABLE, A POST VERTICALLY SLIDABLE IN EACH OF SAID OPENINGS, A CAM BELOW SAID OPENINGS ENGAGING THE BOTTOM OF EACH OF SAID POSTS TO SUPPORT SAID POSTS AT EITHER OF TWO VERTICAL LEVELS, SAID TURNTABLE BEING ROTATABLE TO MOVE SAID POSTS IN A CIRCULAR PATH, MEANS TO ROTATE SAID TURNTABLE WITH UNIFORM RESTS AT EQUALLY SPACED STATIONS, MEANS PROJECTING LATERALLY FROM SAID POST, MEANS AT ONE OF SAID STATIONS FOR DEPRESSING SAID POST FROM ITS HIGHER LEVEL, A LATCH ENGAGING SAID LATERALLY PROJECTING MEANS TO PREVENT RETURN OF SAID POST TO ITS HIGHER LEVEL UPON RELEASE OF SAID DEPRESSING MEANS, AND ANOTHER CAM ENGAGING SAID LATERALLY PROJECTING MEANS TO MOVE SAID POST TO ITS LOWER LEVEL ON THE FIRST CAM AS SAID TURNTABLE MOVES IT TO NEXT SUCCEEDING STATION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-08 | 1961-01-07 | 1961-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-08 | 1965-01-07 | 1965-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-08 | 1969-01-07 | 1969-07-09 | $7700.00 | Window Closed / Lapsed |