US3559391A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of torque yarn
Assignee: Akzona Inc
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Filing: 1968-06-28
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Granted: 1971-02-02
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Expires: 1988-06-28
Abstract
Abstract A TREATING SYSTEM IS DISCLOSED FOR CREATING TORQUE IN RUNNING LENGTHS OF CONTINUOUS FILAMENT OR SPUN YARN. IN A PREFERRED EMBODIMENT, THE YARN IS ELONGATED SIMULTANEOUSLY WITH THE TORQUE PRODUCING OPERATION. THE TREATING SYSTEM UTILIZES A CONICAL YARN-DRIVEN IDLER ROLLER WHICH SERVES AT LEAST THREE FUNCTIONS, E.G., SEPARATES CONVOLUTIONS OF YARN, DERIVES ENERGY FROM A MOTOR-DRIVEN ROLLER, AND TWISTS YARN PASSING OVER THE CONICAL PORTION TO PRODUCE TORQUE. THE TORQUE MAY BE SET BY ANY DESIRED MEANS.
Inventors
- 👤 Charles M Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:43
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/0206; D02G1/022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |