US3325876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for producing elastic yarns and fabrics
Assignee: EIDP Inc
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Filing: 1964-08-05
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Granted: 1967-06-20
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Expires: 1984-08-05
Abstract
No abstract record available.
Inventors
- 👤 Ibrahim Salim Meir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:06
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
116 words
THE METHOD OF PRODUCING HIGH-STRETCH, HIGHRECOVERY YARNS ON THE WOOLEN SYSTEM FROM A MINOR PROPORTION OF ELASTIC FIBERS AND A MAJOR PROPORTION OF INELASTIC FIBERS WHICH COMPRISES STRETCHING SAID ELASTIC FIBERS A PREDETERMINED AMOUNT LESS THAN THE BREAKING ELONGATION, TEMPORARILY HEAT-SETTING SAID ELASTIC FIBERS IN THE STRETCHED CONDITION, BLENDING THE HEAT-SET ELASTIC FIBERS WITH SAID INELASTIC FIBERS, SPINNING THE BLEND INTO YARN ON A CONVENTIONAL WOOLEN SYSTEM UTILIZING DRAFT LEVELS OF LESS THAN 2 TIMES, INCLUDING FALSE TWISTING WITHOUT POSITIVE DRAFT CONTROLS TO CONTROL DRAFT AND THE LOOSELY TWISTED FIBER STRUCTURES, AND THEREAFTER TREATING THE FORMED YARN TO REALES SAID TEMPORARY HEAT-SETTING AND PERMITTING SAID ELASTIC FIBERS TO RETRACT TO IMPART STRETCH TO SAID FORMED YARN.
Claim 2
Independent Claim
116 words
THE METHOD OF PRODUCING HIGH-STRETCH, HIGHRECOVERY YARNS ON THE WOOLEN SYSTEM FROM A MINOR PROPORTION OF ELASTIC FIBERS AND A MAJOR PROPORTION OF INELASTIC FIBERS WHICH COMPRISES STRETCHING SAID ELASTIC FIBERS A PREDETERMINED AMOUNT LESS THAN THE BREAKING ELONGATION, TEMPORARILY HEAT-SETTING SAID ELASTIC FIBERS IN THE STRETCHED CONDITION, BLENDING THE HEAT-SET ELASTIC FIBERS WITH SAID INELASTIC FIBERS, SPINNING THE BLEND INTO YARN ON A CONVENTIONAL WOOLEN SYSTEM UTILIZING DRAFT LEVELS OF LESS THAN 2 TIMES, INCLUDING FALSE TWISTING WITHOUT POSITIVE DRAFT CONTROLS TO CONTROL DRAFT AND THE LOOSELY TWISTED FIBER STRUCTURES, AND THEREAFTER TREATING THE FORMED YARN TO REALES SAID TEMPORARY HEAT-SETTING AND PERMITTING SAID ELASTIC FIBERS TO RETRACT TO IMPART STRETCH TO SAID FORMED YARN.
Claim 3
Independent Claim
120 words
THE METHOD OF PRODUCING HIGH-STRETCH, HIGH-RECOVERY FABRICS FROM A MINOR PROPORTION OF ELASTIC FIBERS AND A MAJOR PROPORTION OF INELASTIC FIBERS WHICH COMPRISES STRETCHING SAID ELASTIC FIBERS A PREDETERMINED AMOUNT LESS THAN THE BREAKING ELONGATION, TEMPORARILY HEATSETTING SAID ELASTIC FIBERS IN THE STRETCHED CONDITION, BLENDING THE HEAT-SET ELASTIC FIBERS WITH SAID INELASTIC FIBERS, SPINNING THE BLEND INTO YARN ON A CONVENTIONAL WOOLEN SYSTEM UTILIZING DRAFT LEVELS OF LESS THAN 2 TIMES, INCLUDING FALSE TWISTING WITHOUT POSITIVE DRAFT CONTROLS TO CONTROL DRAFT AND THE LOOSELY TWISTED FIBER STRUCTURES, FURTHER PROCESSING THE BLEND TO FORM A FABRIC, AND THEREAFTER TREATING THE FORMED FABRIC TO RELEASE SAID TEMPORARY HEATSETTING AND PERMITTING SAID ELASTIC FIBERS TO RETRACT TO IMPART STRETCH TO SAID FORMED FABRIC.
Claim 4
Independent Claim
120 words
THE METHOD OF PRODUCING HIGH-STRETCH, HIGH-RECOVERY FABRICS FROM A MINOR PROPORTION OF ELASTIC FIBERS AND A MAJOR PROPORTION OF INELASTIC FIBERS WHICH COMPRISES STRETCHING SAID ELASTIC FIBERS A PREDETERMINED AMOUNT LESS THAN THE BREAKING ELONGATION, TEMPORARILY HEATSETTING SAID ELASTIC FIBERS IN THE STRETCHED CONDITION, BLENDING THE HEAT-SET ELASTIC FIBERS WITH SAID INELASTIC FIBERS, SPINNING THE BLEND INTO YARN ON A CONVENTIONAL WOOLEN SYSTEM UTILIZING DRAFT LEVELS OF LESS THAN 2 TIMES, INCLUDING FALSE TWISTING WITHOUT POSITIVE DRAFT CONTROLS TO CONTROL DRAFT AND THE LOOSELY TWISTED FIBER STRUCTURES, FURTHER PROCESSING THE BLEND TO FORM A FABRIC, AND THEREAFTER TREATING THE FORMED FABRIC TO RELEASE SAID TEMPORARY HEATSETTING AND PERMITTING SAID ELASTIC FIBERS TO RETRACT TO IMPART STRETCH TO SAID FORMED FABRIC.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-19 | 1970-12-19 | 1971-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-19 | 1974-12-19 | 1975-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-19 | 1978-12-19 | 1979-06-20 | $7700.00 | Window Closed / Lapsed |