US3605499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanism for ejecting workpieces from a die
Assignee: JONES & LAMSON MACHINE COMPANY Inc W JOHNSON AVENUE CHESHIRE CT A CORP OF DE
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Filing: 1969-04-22
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Granted: 1971-09-20
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Expires: 1989-04-22
Abstract
Abstract A KNOCKOUT MECHANISM FOR EJECTING WORKPIECES FROM A DIE WHICH COMPRISES A KNOCKOUT PIN SLIDABLY MOUNTED IN THE DIE AND SLIDABLY SUPPORTED IN A BORE IN THE FRAME THEREFOR, THE KNOCKOUT PIN COOPERATING WITH A SLEEVE MEMBER HAVING AT LEAST ONE ARM PIVOTALLY MOUNTED THERE- ON AND COOPERATING WITH A FLANGE ON THE END OF THE FORWARD SECTION OF THE PIN SUCH THAT THE END OF THE ARM CAN PASS OVER AND GRIP THE FLANGE IN ORDER THAT THE SLEEVE MEMBER BE SLIDABLY RETRACTED WITH SAID KNOCKOUT PIN.
Inventors
- 👤 Anthony M Putetti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:39
CPC Classifications
B; B21; B21J; B21J13/00; B21J13/08; B21J13/14
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |