Patent US5295131A successfully refreshed from Google Patents.
Patent US3242712A successfully refreshed from Google Patents.
US3242712A
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Apparatus for the forming of articles
Assignee: General Dynamics Corp
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Filing: 1964-12-02
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Granted: 1966-03-29
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Expires: 1984-12-02
Abstract
No abstract record available.
Inventors
- 👤 Oran G Dalton
- 👤 Jessie L Mcdaniel
- 👤 Richard K May
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:06
CPC Classifications
B; B21; B21K; B21K5/00; B21K5/02; B21K5/04; B21C; B21C23/00; B21C23/02; B21C23/04; B21C23/14; B21C23/147; B21J; B21J5/00; B21J5/06; B21J5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
AN APPARATUS FOR THE FORMING OF CUTTERS HAVING HELICAL TEETH COMPRISING, IN COMBINATION: A DIE HAVING A CAVITY THEREIN FOR THE RECEIPT OF A BILLET, AT LEAST A PORTION OF THE SIDE WALL OF SAID DIE CAVITY BEING PROVIDED WITH A HELICAL FLUTE FOR CUTTER TOOTH FORMING; PUNCH MEANS ACTUABLY BY HIGH ENERGY RATE RAM MEANS AND RECEIVABLE WITHIN SAID DIE CAVITY TO EXTRUDE A BILLET POSITIONED THEREIN TO FORM A CUTTER BLANK; AND AN EJECTION MEMBER MOVABLE THROUGH THE CAVITY TO EFFECT SUBSTANTIAL CLOSURE OF ONE END OF SAID CAVITY AND PROVIDED WITH A GUIDING THREAD OF A HELICAL SHAPE SIMILAR TO THAT OF SAID FLUTE, SAID GUIDING THREAD BEING RECEIVABLE WITHIN THE HELICAL FLUTE TO TRACK THEREIN CAUSING SAID EJECTION MEMBER TO MOVE IN ROTATION AS SAME MOVES LONGITUDINALLY OF SAID CAVITY THEREBY TO EFFECT ROTATIONAL AND LONGITUDINAL MOVEMENT OF THE EXTRUDED BILLET AND ITS EJECTION FROM THE DIE CAVITY.
Claim 2
Independent Claim
152 words
AN APPARATUS FOR THE FORMING OF CUTTERS HAVING HELICAL TEETH COMPRISING, IN COMBINATION: A DIE HAVING A CAVITY THEREIN FOR THE RECEIPT OF A BILLET, AT LEAST A PORTION OF THE SIDE WALL OF SAID DIE CAVITY BEING PROVIDED WITH A HELICAL FLUTE FOR CUTTER TOOTH FORMING; PUNCH MEANS ACTUABLY BY HIGH ENERGY RATE RAM MEANS AND RECEIVABLE WITHIN SAID DIE CAVITY TO EXTRUDE A BILLET POSITIONED THEREIN TO FORM A CUTTER BLANK; AND AN EJECTION MEMBER MOVABLE THROUGH THE CAVITY TO EFFECT SUBSTANTIAL CLOSURE OF ONE END OF SAID CAVITY AND PROVIDED WITH A GUIDING THREAD OF A HELICAL SHAPE SIMILAR TO THAT OF SAID FLUTE, SAID GUIDING THREAD BEING RECEIVABLE WITHIN THE HELICAL FLUTE TO TRACK THEREIN CAUSING SAID EJECTION MEMBER TO MOVE IN ROTATION AS SAME MOVES LONGITUDINALLY OF SAID CAVITY THEREBY TO EFFECT ROTATIONAL AND LONGITUDINAL MOVEMENT OF THE EXTRUDED BILLET AND ITS EJECTION FROM THE DIE CAVITY.
References Cited (Backward Citations)
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US2748464A
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US2904173A
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US2764042A
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US2954121A
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US2966987A
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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) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |