US3343356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for producing core yarn
Assignee: Burlington Industries Inc
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Filing: 1965-09-03
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Granted: 1967-09-26
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Expires: 1985-09-03
Abstract
No abstract record available.
Inventors
- 👤 Allen G Mckinnon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:00
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/32; D02G3/328
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
APPARATUS FOR PRODUCING A CORE YARN FROM A CONTINUOUS FILAMENT ELASTOMER AND AT LEAST ONE ROVING COMPRISING: A SPINNING FRAME HAVING A DRAFTING ZONE AND FRONT ROLLS; MEANS FOR FEEDING ROVING TO AND THROUGH THE DRAFTING ZONE AND FRONT ROLLS; AND MEANS FOR FEEDING THE CONTINUOUS FILAMENT ELASTOMER AT A SUBSTANTIALLY CONSTANT TENSION TO THE FRONT ROLLS, SAID LAST MENTIONED MEANS INCLUDING A FIRST MEANS FOR APPLYING A PRETENSION TO THE ELASTOMER AND A SECOND MEANS FOR APPLYING ADDITIONAL TENSION TO THE ELASTOMER AFTER THE SAME HAS BEEN PRETENSIONED, SAID SECOND MEANS ALSO COMPENSATING FOR VARIATIONS, SUCH AS ELONGATION, MODULUS AND THE LIKE, IN THE ELASTOMER
Claim 2
Dependent Claim
106 words
APPARATUS FOR PRODUCING A CORE YARN FROM A CONTINUOUS FILAMENT ELASTOMER AND AT LEAST ONE ROVING COMPRISING: A SPINNING FRAME HAVING A DRAFTING ZONE AND FRONT ROLLS; MEANS FOR FEEDING ROVING TO AND THROUGH THE DRAFTING ZONE AND FRONT ROLLS; AND MEANS FOR FEEDING THE CONTINUOUS FILAMENT ELASTOMER AT A SUBSTANTIALLY CONSTANT TENSION TO THE FRONT ROLLS, SAID LAST MENTIONED MEANS INCLUDING A FIRST MEANS FOR APPLYING A PRETENSION TO THE ELASTOMER AND A SECOND MEANS FOR APPLYING ADDITIONAL TENSION TO THE ELASTOMER AFTER THE SAME HAS BEEN PRETENSIONED, SAID SECOND MEANS ALSO COMPENSATING FOR VARIATIONS, SUCH AS ELONGATION, MODULUS AND THE LIKE, IN THE ELASTOMER
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) | 1970-09-25 | 1971-03-27 | 1971-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-25 | 1975-03-27 | 1975-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-25 | 1979-03-27 | 1979-09-26 | $7700.00 | Window Closed / Lapsed |