Patent US3328840A successfully refreshed from Google Patents.
US3328840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powder compacting press
Assignee: Pentronix Inc
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Filing: 1966-02-24
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Granted: 1967-07-04
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Expires: 1986-02-24
Abstract
No abstract record available.
Inventors
- 👤 Vinson Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:58
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/32; B22; B22F; B22F3/00; B22F3/02; B22F3/03; B30B15/30; B30B15/302; Y; Y10; Y10S; Y10S425/00; Y10S425/116; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18288; Y10T74/21; Y10T74/2101; Y10T74/2102
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
IN A COMPACTING MACHINE FOR MAKING ARTICLES COMPACTED FROM POWDER, IN COMBINATION, A DIE HAVING AT LEAST ONE CAVITY THEREIN, MEANS FOR FILLING THE CAVITY WITH A POWDER TO BE COMPACTED, AN ANVIL HVING A FLAT SURFACE, MEANS FOR PLACING SAID FLAT SURFACE OVER SAID CAVITY AND MEANS FOR COMPACTING THE POWDER COMPRISING A PUNCH MOVABLE IN SAID CAVITY FOR COMPACTING THE POWDER AGAINST THE ANVIL, WHEREIN SAID DIE HAS A PLURALITY OF CIRCULARLY ARRANGED CAVITIES, A PUNCH IS DISPOSED MOVABLE IN EACH OF SAID CAVITIES, AND A TOOL HOLDER IS PROVIDED FOR A PLURALITY OF PUNCHES, SAID HOLDER COMPRISING A CIRCULAR MEMBER HAVING CIRCULARLY ARRANGED PERIPHERAL RADIAL OPENINGS HOLDING THE PUNCHES WHEREBY THE PUNCHES CAN FLOAT RADIALLY WITH RESPECT TO SAID CIRCULAR MEMBER.
Claim 2
Dependent Claim
124 words
IN A COMPACTING MACHINE FOR MAKING ARTICLES COMPACTED FROM POWDER, IN COMBINATION, A DIE HAVING AT LEAST ONE CAVITY THEREIN, MEANS FOR FILLING THE CAVITY WITH A POWDER TO BE COMPACTED, AN ANVIL HVING A FLAT SURFACE, MEANS FOR PLACING SAID FLAT SURFACE OVER SAID CAVITY AND MEANS FOR COMPACTING THE POWDER COMPRISING A PUNCH MOVABLE IN SAID CAVITY FOR COMPACTING THE POWDER AGAINST THE ANVIL, WHEREIN SAID DIE HAS A PLURALITY OF CIRCULARLY ARRANGED CAVITIES, A PUNCH IS DISPOSED MOVABLE IN EACH OF SAID CAVITIES, AND A TOOL HOLDER IS PROVIDED FOR A PLURALITY OF PUNCHES, SAID HOLDER COMPRISING A CIRCULAR MEMBER HAVING CIRCULARLY ARRANGED PERIPHERAL RADIAL OPENINGS HOLDING THE PUNCHES WHEREBY THE PUNCHES CAN FLOAT RADIALLY WITH RESPECT TO SAID CIRCULAR MEMBER.
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) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |