US3355871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transmission means for driving and rotating false twist spindles
Assignee: Klinger Manufacturing Co Ltd
•
Filing: 1965-01-12
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Granted: 1967-12-05
•
Expires: 1985-01-12
Abstract
No abstract record available.
Inventors
- 👤 Mattingly Denis Albert Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:08
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/04; D02G1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A DEVICE FOR USE IN FALSE TWISTING YARN COMPRISING TWO HORSESHOE MAGNETS DISPOSED SIDE BY SIDE WITH LIKE POLES ADJACENT AND BRIDGED BY POLE PIECES OF MATERIAL HAVING A HIGHER MAGNETIC PERMEABILITY THAN THAT OF THE MAGNETS, THE POLE PIECES EACH REDUCING TO A TIP OF SMALL AREA TO CONCENTRATE THE MAGNETIC FLUX AT SAID TIP, TRACK MEANS PASSING BETWEEN THE TWO POLE PIECES AND BEING SUPPORTED BY A SHAFT EXTENDING BETWEEN THE TWO HORSESHOE MAGNETS AND BEING ROTATABLE ABOUT AN AXIS PARALLEL TO THE GENERAL DIRECTION OF THE MAGNETIC FIELD BETWEEN SAID TIPS, AND A FALSE TWIST SPINDLE DRAWN BY THE CONCENTRATED MAGNETIC FLUX AT SAID TIPS INTO CONTACT WITH SAID TRACK MEANS, THERE BEING A SMALL AIR GAP BETWEEN EACH TIP AND THE SPINDLE.
Claim 2
Independent Claim
126 words
A DEVICE FOR USE IN FALSE TWISTING YARN COMPRISING TWO HORSESHOE MAGNETS DISPOSED SIDE BY SIDE WITH LIKE POLES ADJACENT AND BRIDGED BY POLE PIECES OF MATERIAL HAVING A HIGHER MAGNETIC PERMEABILITY THAN THAT OF THE MAGNETS, THE POLE PIECES EACH REDUCING TO A TIP OF SMALL AREA TO CONCENTRATE THE MAGNETIC FLUX AT SAID TIP, TRACK MEANS PASSING BETWEEN THE TWO POLE PIECES AND BEING SUPPORTED BY A SHAFT EXTENDING BETWEEN THE TWO HORSESHOE MAGNETS AND BEING ROTATABLE ABOUT AN AXIS PARALLEL TO THE GENERAL DIRECTION OF THE MAGNETIC FIELD BETWEEN SAID TIPS, AND A FALSE TWIST SPINDLE DRAWN BY THE CONCENTRATED MAGNETIC FLUX AT SAID TIPS INTO CONTACT WITH SAID TRACK MEANS, THERE BEING A SMALL AIR GAP BETWEEN EACH TIP AND THE SPINDLE.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |