US3142953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive system for false twisters
Assignee: IHO Holding GmbH and Co KG
•
Filing: 1962-05-16
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Granted: 1964-08-04
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Expires: 1982-05-16
Abstract
No abstract record available.
Inventors
- 👤 Gassner Hans
- 👤 Lang Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:29
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/04; D02G1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
163 words
A HIGH SPEED ROTARY DRIVE FOR FALSE TWISTING SPINDLES, COMPRISING LATERALLY SPACED PAIRS OF COAXIAL DISCS, EACH OF THE PAIRS COPLANARLY ARRANGED, A ROTARY TWISTING TUBE RECEIVED BETWEEN THE PAIRS OF DISCS, AND MAGNETIC MEANS ATTRACTING THE TUBE AGAINST THE PERIPHERIES OF THE DISCS, THE TUBE PROVIDED WITH TWO AXIALLY SPACED COLLARS HAVING OUTWARDLY TAPERING CROSS-SECTION, EACH COLLAR BEING ADJACENT TO AN ASSOCIATED POLE PIECE OF THE MAGNETIC MEANS, EACH OF THE POLE PIECES HAVING AN INWARDLY CURVED RECESS OF SUBSTANTIALLY SMALLER RADIUS THAN THAT OF THE ADJACENT COLLAR, THE RECESS FORMING TWO EDGES WITHIN THE POLE PIECES WHICH EDGES SUBTEND AT THE AXIS OF THE TUBE AN ANGLE WHICH LIES INSIDE THE ANGLE INCLUDED BETWEEN THE RADII FROM THE AXIS OF THE TUBE TO THE AXES OF ROTATION OF THE DISCS, AND THE RECESS BEING LOCATED OPPOSITE THE COLLARS SO THAT A CONCENTRATION OF THE MAGNETIC FLUX BETWEEN THE COLLAR AND THE EDGES OF THE RECESS OF THE POLE PIECE IS ACHIEVED.
Claim 2
Dependent Claim
163 words
A HIGH SPEED ROTARY DRIVE FOR FALSE TWISTING SPINDLES, COMPRISING LATERALLY SPACED PAIRS OF COAXIAL DISCS, EACH OF THE PAIRS COPLANARLY ARRANGED, A ROTARY TWISTING TUBE RECEIVED BETWEEN THE PAIRS OF DISCS, AND MAGNETIC MEANS ATTRACTING THE TUBE AGAINST THE PERIPHERIES OF THE DISCS, THE TUBE PROVIDED WITH TWO AXIALLY SPACED COLLARS HAVING OUTWARDLY TAPERING CROSS-SECTION, EACH COLLAR BEING ADJACENT TO AN ASSOCIATED POLE PIECE OF THE MAGNETIC MEANS, EACH OF THE POLE PIECES HAVING AN INWARDLY CURVED RECESS OF SUBSTANTIALLY SMALLER RADIUS THAN THAT OF THE ADJACENT COLLAR, THE RECESS FORMING TWO EDGES WITHIN THE POLE PIECES WHICH EDGES SUBTEND AT THE AXIS OF THE TUBE AN ANGLE WHICH LIES INSIDE THE ANGLE INCLUDED BETWEEN THE RADII FROM THE AXIS OF THE TUBE TO THE AXES OF ROTATION OF THE DISCS, AND THE RECESS BEING LOCATED OPPOSITE THE COLLARS SO THAT A CONCENTRATION OF THE MAGNETIC FLUX BETWEEN THE COLLAR AND THE EDGES OF THE RECESS OF THE POLE PIECE IS ACHIEVED.
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) | 1967-08-04 | 1968-02-03 | 1968-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-04 | 1972-02-03 | 1972-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-04 | 1976-02-03 | 1976-08-04 | $7700.00 | Window Closed / Lapsed |