US3616503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for crimping and thermally treating yarn
Assignee: Klinger Manufacturing Co Ltd
•
Filing: 1968-01-03
•
Granted: 1971-11-02
•
Expires: 1988-01-03
Abstract
Abstract CRIMPED YARN IN THE FORM OF A PLUG, SUCH AS IS PRODUCED BY LONGITUDINALLY COMPRESSING AND BUNCHING THE YARN IN A STUFFER BOX, IS CONVEYED, WHILE IN THE PLUG FORM, THROUGH A TREATING ZONE WITH THE AID OF A FLOW OF GAS. IN THE TREATING ZONE THE PLUG OF CRIMPED YARN MAY BE SUBJECTED TO HEATING AND/OR COOLING TREATMENT TO IMPROVE THE PROPERTIES OF THE YARN. THE FLOW OF GAS IS INDUCED THROUGH THE TREATING ZONE IN THE DIRECTION OF TRAVEL OF THE PLUG PREFERABLY BY SUCTION AT THE EXIT END OF THE TREATING ZONE.
Inventors
- 👤 Denis Albert Edward Mattingly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:08
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1974-11-01 | 1975-05-03 | 1975-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-01 | 1979-05-03 | 1979-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-01 | 1983-05-03 | 1983-11-02 | $7700.00 | Window Closed / Lapsed |