US3587145A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crimping apparatus with heating and cooling cage
Assignee: Joseph Bancroft and Sons Co
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Filing: 1969-06-19
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Granted: 1971-06-28
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Expires: 1989-06-19
Abstract
Abstract A STUFFER CRIMPER HAVING A CLOSED HOUSING FORMING A HEATING CHAMBER AND A SET OF SPACED RODS SUPPORTING THE CORE OF CRIMPED YARN AND HOLDING THE CORE SPACED FROM THE WALLS OF THE HOUSING. CHOKE MEMBERS ENGAGE THE SIDES OF SAID CORE NEAR THE INLET END OF SAID HEATING CHAMBER TO CONTROL THE BACK PRESSURE OF THE CORE. STEAM UNDER LOW PRESSURE IS INTRODUCED INTO THE CHAMBER BETWEEN THE WALLS AND THE CORE AND IS CAUSED TO PERMEATE THE CORE AND ACT AS A HEAT TRANSFER AGENT TO FACILITATE THE SETTING OF THE CRIMP.
Inventors
- 👤 Donald W Mckinney
- 👤 Henry A Sinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:55
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12
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) | 1974-06-27 | 1974-12-27 | 1975-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-27 | 1978-12-27 | 1979-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-27 | 1982-12-27 | 1983-06-28 | $7700.00 | Window Closed / Lapsed |