Patent US3284023A successfully refreshed from Google Patents.
US3284023A
Expired / Lapsed
US
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Textile core with a yarn engaging groove
Assignee: EIDP Inc
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Filing: 1965-12-15
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Granted: 1966-11-08
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Expires: 1985-12-15
Abstract
No abstract record available.
Inventors
- 👤 Sowell Lyles Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:26
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/28; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
168 words
FOR USE IN WINDING YARN PACKAGES AT HIGH SPEED, A TEXTILE CORE HAVING A CYLINDRICAL BODY FOR SUPPORTING THE YARN, A CIRCUMFERENTIAL GROOVE NEAR ONE END OF THE BODY FOR ENGAGING YARN WHEN STARTING TO WIND A PACKAGE, SAID GROOVE BEING A GENERALLY V-SHAPED NOTCH OF SUBSTANTIALLY UNIFORM DEPTH IN THE EXTERIOR SURFACE OF THE BODY AND ALIGNED IN A PLANE PERPENDICULAR TO THE CYLINDER AXIS OF THE BODY, THE OPPOSITE SIDES OF THE GROOVE CONVERGING TO MEET IN AN ACUTE ANGLE AT THE BOTTOM OF THE GROOVE, AND A PLURALITY OF YARN TRAPS ALONG THE GROOVE FOR CATCHING YARN IN THE GROOVE AND FOR BREAKING OFF THE LEAD END OF THE YARN TO START A PACKAGE, EACH OF SAID TRAPS COMPRISING A PROTUBERANCE ON ONE SIDE OF THE GROOVE WHICH SUBSTANTIALLY TOUCHES THE OPPOSITE SIDE OF THE GROOVE, IS SITUATED IN THE LOWER 3/4 OF THE DEPTH OF GROOVE, AND HAS A WIDTH MEASURED ALONG THE GROOVE OF LESS THAN 0.25 TIMES THE CIRCUMFERENCE OF THE BODY.
Claim 2
Dependent Claim
168 words
FOR USE IN WINDING YARN PACKAGES AT HIGH SPEED, A TEXTILE CORE HAVING A CYLINDRICAL BODY FOR SUPPORTING THE YARN, A CIRCUMFERENTIAL GROOVE NEAR ONE END OF THE BODY FOR ENGAGING YARN WHEN STARTING TO WIND A PACKAGE, SAID GROOVE BEING A GENERALLY V-SHAPED NOTCH OF SUBSTANTIALLY UNIFORM DEPTH IN THE EXTERIOR SURFACE OF THE BODY AND ALIGNED IN A PLANE PERPENDICULAR TO THE CYLINDER AXIS OF THE BODY, THE OPPOSITE SIDES OF THE GROOVE CONVERGING TO MEET IN AN ACUTE ANGLE AT THE BOTTOM OF THE GROOVE, AND A PLURALITY OF YARN TRAPS ALONG THE GROOVE FOR CATCHING YARN IN THE GROOVE AND FOR BREAKING OFF THE LEAD END OF THE YARN TO START A PACKAGE, EACH OF SAID TRAPS COMPRISING A PROTUBERANCE ON ONE SIDE OF THE GROOVE WHICH SUBSTANTIALLY TOUCHES THE OPPOSITE SIDE OF THE GROOVE, IS SITUATED IN THE LOWER 3/4 OF THE DEPTH OF GROOVE, AND HAS A WIDTH MEASURED ALONG THE GROOVE OF LESS THAN 0.25 TIMES THE CIRCUMFERENCE OF THE BODY.
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) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |