US3340585A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yarn crimping method and apparatus
Assignee: Akzo Nobel UK PLC
•
Filing: 1965-08-18
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Granted: 1967-09-12
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Expires: 1985-08-18
Abstract
No abstract record available.
Inventors
- 👤 Buckley Gordon Stuart
- 👤 Robb Ronald Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:47
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
YARN-CRIMPING APPARATUS WHICH COMPRISES MEANS FOR FORCING A PLURALITY OF YARNS, PARALLEL TO AND IN CONTACT WITH EACH OTHER, IN A SINGLE LAYER, BY MEANS OF A PAIR OF NIP ROLLERS, INTO A HEATED CHANNEL HAVING A WIDTH SUCH THAT THE YARNS ARE MAINTAINED UNDER LATERAL COMPRESSION, MEANS COMPRISING A HEATED SURFACE AGAINST SAID LAYER OF YARNS FOR APPLYING PRESSURE ON SAID YARNS AS SAID YARNS ARE PASSED THROUGH SAID CHANNEL, AND MEANS FOR EJECTING SAID YARNS FROM SAID CHANNEL ONTO A COOL SURFACE, THEREBY COOLING THE YARNS TO SET CRIMP DEVELOPED IN SAID HEATED CHANNEL.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |