US3267657A
Expired / Lapsed
US
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False twisting device
Assignee: Heberlein Patent Corp
•
Filing: 1959-11-04
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Granted: 1966-08-23
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Expires: 1979-11-04
Abstract
No abstract record available.
Inventors
- 👤 Kunzle August
- 👤 Roth Willy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 02:08
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/04; D02G1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
APPARATUS FOR FALSE TWISTING TEXTILE YARNS COMPRISING A PAIR OF ROLLERS, AT LEAST ONE OF WHICH IS DRIVEN, SPACED ONE FROM THE OTHER TO FORM A CROTCH THEREBETWEEN, A YARN TWISTING TUBE POSITIONED IN SAID CROTCH IN FRICTIONAL ENGAGEMENT WITH THE PERIPHERAL EDGES OF SAID ROLLERS AT PORTIONS SUBSTANTIALLY SPACED LONGITUDINALLY OF SAID TUBE AND HAVING MEANS FOR IMPARTING A TWIST TO YARN PASSING THERETHROUGH UPON ROTATION OF SAID TUBE, AND SEPARATE MAGNETIC MEANS LOCATED SUBSTANTIALLY EQUIDISTANT FROM THE AXES OF SAID ROLLERS AND ACTING ON SAID TUBE BETWEEN SAID SPACED PORTIONS TO MAINTAIN THE TUBE POSITIONED IN SAID CROTCH AND IN SAID FRICTION ENGAGEMENT, THE PORTIONS OF SAID TUBE IN FRICTIONAL ENGAGEMENT WITH THE EDGES OF SAID ROLLERS HAVING DIAMETERS SUBSTANTIALLY SMALLER THAN THOSE OF THE ROLLERS TAKEN AT THE CORRESPONDING PERIPHERAL EDGES.
Claim 2
Dependent Claim
134 words
APPARATUS FOR FALSE TWISTING TEXTILE YARNS COMPRISING A PAIR OF ROLLERS, AT LEAST ONE OF WHICH IS DRIVEN, SPACED ONE FROM THE OTHER TO FORM A CROTCH THEREBETWEEN, A YARN TWISTING TUBE POSITIONED IN SAID CROTCH IN FRICTIONAL ENGAGEMENT WITH THE PERIPHERAL EDGES OF SAID ROLLERS AT PORTIONS SUBSTANTIALLY SPACED LONGITUDINALLY OF SAID TUBE AND HAVING MEANS FOR IMPARTING A TWIST TO YARN PASSING THERETHROUGH UPON ROTATION OF SAID TUBE, AND SEPARATE MAGNETIC MEANS LOCATED SUBSTANTIALLY EQUIDISTANT FROM THE AXES OF SAID ROLLERS AND ACTING ON SAID TUBE BETWEEN SAID SPACED PORTIONS TO MAINTAIN THE TUBE POSITIONED IN SAID CROTCH AND IN SAID FRICTION ENGAGEMENT, THE PORTIONS OF SAID TUBE IN FRICTIONAL ENGAGEMENT WITH THE EDGES OF SAID ROLLERS HAVING DIAMETERS SUBSTANTIALLY SMALLER THAN THOSE OF THE ROLLERS TAKEN AT THE CORRESPONDING PERIPHERAL EDGES.
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) | 1969-08-22 | 1970-02-21 | 1970-08-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-22 | 1974-02-21 | 1974-08-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-22 | 1978-02-21 | 1978-08-23 | $7700.00 | Window Closed / Lapsed |