US3303639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pneumtic false twister
Assignee: Monsanto Co
•
Filing: 1965-06-23
•
Granted: 1967-02-14
•
Expires: 1985-06-23
Abstract
No abstract record available.
Inventors
- 👤 Ernest P Carter
- 👤 Roger S Otstot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:21
CPC Classifications
D; D02; D02G; D02G1/00; D02G1/02; D02G1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
APPARATUS FOR IMPARTING FALSE TWIST TO A CONTINUOUS STRAND, COMPRISING: (A) A BODY MEMBER HAVING AN INTERNAL BORE WHICH IS SUBSTANTIALLY UNOBSTRUCTED AT ONE END THEREOF, (B) A HOLLOW MEMBER DISPOSED IN SAID BORE, SAID MEMBER HAVING A PASSAGEWAY FOR RECEIING A YARN TO BE FALSE TWISTED, (C) A SCREW THREAD-LIKE CONFIGURATION CIRCUMSCRIBING SAID HOLLOW MEMBER, AND (D) AN INLET FOR INTRODUCING A GASEOUS MEDIUM INTO THE INTERNAL BORE WHEREIN SAID THREAD-LIKE CONFIGURATION IS ADAPTED FOR DIRECTING SAID MEDIUM IN A COHERENT STREAM HAVING A COILING MOTION WHEREBY FALSE TWIST IS IMPARTED TO SAID YARN.
Claim 2
Dependent Claim
95 words
APPARATUS FOR IMPARTING FALSE TWIST TO A CONTINUOUS STRAND, COMPRISING: (A) A BODY MEMBER HAVING AN INTERNAL BORE WHICH IS SUBSTANTIALLY UNOBSTRUCTED AT ONE END THEREOF, (B) A HOLLOW MEMBER DISPOSED IN SAID BORE, SAID MEMBER HAVING A PASSAGEWAY FOR RECEIING A YARN TO BE FALSE TWISTED, (C) A SCREW THREAD-LIKE CONFIGURATION CIRCUMSCRIBING SAID HOLLOW MEMBER, AND (D) AN INLET FOR INTRODUCING A GASEOUS MEDIUM INTO THE INTERNAL BORE WHEREIN SAID THREAD-LIKE CONFIGURATION IS ADAPTED FOR DIRECTING SAID MEDIUM IN A COHERENT STREAM HAVING A COILING MOTION WHEREBY FALSE TWIST IS IMPARTED TO SAID YARN.
References Cited (Backward Citations)
US2924000A
Cited
US2773282A
Cited
US2783609A
Cited
FR1137609A
Cited
GB787285A
Cited
US3022566A
Cited
US2990671A
Cited
US3204396A
Cited
US3217482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |