US3568495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crimping or compression device
Assignee: Individual
•
Filing: 1969-02-12
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Granted: 1971-03-09
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Expires: 1989-02-12
Abstract
Abstract A FLUID OPERATED CRIMPING OR SWAGING PRESS WHICH IS ADAPTED FOR EXERTING A RADIAL PRESSURE ON AN ARTICLE, SUCH AS A HOSE END FITTIN, POSITIONED IN THE CENTRE OF THE PRESS. THE RADIAL PRESSURE IS EXERTED THROUGH A SERIES OF PRIMARY COLLET MEMBERS UPON INJECTION INTO THE PRESS OF A PRESSURIZED FLUID MEDIUM AND, TO PERMIT INTERCHANGEABILITY OF THE PRIMARY COLLET MEMBERS-FOR VARIOUS APPLICATIONS, THE PRIMARY COLLECT MEMBERS ARE SURROUNDED BY AND ARE REMOVABLY FITTED TO CAPTIVE SECONDARY COLLECT MEMBERS.
Inventors
- 👤 Frederick Russell Duffield
- 👤 Claude Harcourt Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:43
CPC Classifications
B; B25; B25B; B25B27/00; B25B27/02; B25B27/10; B21; B21D; B21D41/00; B23; B23B; B23B31/00; B23B31/02; B23B31/10; B23B31/12; B23B31/16; B23B31/16287; B23B31/24; B23B31/30; B23B31/305; B30; B30B; B30B7/00; B30B7/04
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) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |