US3316610A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of rendering fabrics stretchable
Assignee: Imperial Chemical Industries Ltd
•
Filing: 1963-12-02
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Granted: 1967-05-02
•
Expires: 1983-12-02
Abstract
No abstract record available.
Inventors
- 👤 Manock Geoffrey Windle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 16:25
CPC Classifications
D; D06; D06C; D06C29/00; D03; D03D; D03D15/00; D03D15/50; D03D15/56; D06C7/00; D06C7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
138 words
A PROCESS FOR IMPARTING STRETCH CHARACTERISTICS TO A FABRIC WOVEN FROM TWO SETS OF PARALLEL YARNS, ONE OF SAID SETS INCLUDING YARNS COMPRISING A PROPORTION OF SYNTHETIC THERMOPLASTIC FIBRES HAVING A GLASS-RUBBER TRANSITION TEMPERATURE WHEN WET, ABOVE 80* C., SAID PROCESS COMPRISING: STRETCHING THE FABRIC IN THE DIRECTION OF THE OTHER SET OF YARNS TO REMOVE ONDULATIONS THEREFROM, AS MUCH AS POSSIBLE WITHOUT BREAKING THE YARNS, WHILE ALLOWING THE YARNS IN SAID ONE SET TO TELAX THEREBY TO INCREASE THE YARN CRIMP THERIN AND THERBY ESTABLISHING CRIMP INTERCHANGE BETWEEN THE TWO SETS OF YARNS; HEAT-SETTING THE INCREASED CRIMP IN THE YARNS IN SAID ONE SET; AND COOLING THE FABRIC TO BELOW THE RUBBER TRANSITION TEMPERATURE OF THE FIBRES IN SAID ONE SET BEFORE REMOVING A SUBSTANTIAL PROPORTION OF THE STRETCHING FORCE SO AS TO MAINTAIN SAID CRIMP INTERCHANGE.
Claim 2
Dependent Claim
138 words
A PROCESS FOR IMPARTING STRETCH CHARACTERISTICS TO A FABRIC WOVEN FROM TWO SETS OF PARALLEL YARNS, ONE OF SAID SETS INCLUDING YARNS COMPRISING A PROPORTION OF SYNTHETIC THERMOPLASTIC FIBRES HAVING A GLASS-RUBBER TRANSITION TEMPERATURE WHEN WET, ABOVE 80* C., SAID PROCESS COMPRISING: STRETCHING THE FABRIC IN THE DIRECTION OF THE OTHER SET OF YARNS TO REMOVE ONDULATIONS THEREFROM, AS MUCH AS POSSIBLE WITHOUT BREAKING THE YARNS, WHILE ALLOWING THE YARNS IN SAID ONE SET TO TELAX THEREBY TO INCREASE THE YARN CRIMP THERIN AND THERBY ESTABLISHING CRIMP INTERCHANGE BETWEEN THE TWO SETS OF YARNS; HEAT-SETTING THE INCREASED CRIMP IN THE YARNS IN SAID ONE SET; AND COOLING THE FABRIC TO BELOW THE RUBBER TRANSITION TEMPERATURE OF THE FIBRES IN SAID ONE SET BEFORE REMOVING A SUBSTANTIAL PROPORTION OF THE STRETCHING FORCE SO AS TO MAINTAIN SAID CRIMP INTERCHANGE.
References Cited (Backward Citations)
US1944001A
Cited
US2821771A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-01 | 1970-10-31 | 1971-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-01 | 1974-10-31 | 1975-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-01 | 1978-10-31 | 1979-05-02 | $7700.00 | Window Closed / Lapsed |