US2740992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crimping and winding apparatus
Assignee: Joseph Bancroft and Sons Co
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Filing: 1955-03-01
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Granted: 1956-04-10
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Expires: 1975-03-01
Abstract
No abstract record available.
Inventors
- 👤 Ewart H Shattuck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:45
CPC Classifications
B; B65; B65H; B65H54/00; B65H54/02; B65H54/40; B65H54/52; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
APPARATUS FOR CRIMPING YARN OR THE LIKE COMPRISING A MEMBER HAVING A BORE FORMING A CRIMPING CHAMBER, A PAIR OF FEED ROLLS TO FEED SAID YARN INTO ONE END OF SAID CHAMBER FOR CRIMPING. A MEMBER BEARING AGAINST THE MASS OF CRIMPED YARN AT THE OTHER END OF SAID CHAMBER AND MOVABLE IN ACCORDANCE WITH CHANGES IN THE QUANTITY OF SAID YARN THEREIN, A CONSTANT SPEED WINDER TO WITHDRAW CRIMPED YARN UNDER TENSION FROM SAID OTHER END OF SAID CHAMBER, AND CONTROL MEANS RESPONSIVE TO MOVEMENT OF SAID MEMBER AND ACTING ON SAID WINDER TO VARY THE YARN SLIPPAGE IN A SENSE TO MAINTAIN A CONSTANT QUANTITY OF YARN IN SAID CHAMBER.
Claim 2
Dependent Claim
112 words
APPARATUS FOR CRIMPING YARN OR THE LIKE COMPRISING A MEMBER HAVING A BORE FORMING A CRIMPING CHAMBER, A PAIR OF FEED ROLLS TO FEED SAID YARN INTO ONE END OF SAID CHAMBER FOR CRIMPING. A MEMBER BEARING AGAINST THE MASS OF CRIMPED YARN AT THE OTHER END OF SAID CHAMBER AND MOVABLE IN ACCORDANCE WITH CHANGES IN THE QUANTITY OF SAID YARN THEREIN, A CONSTANT SPEED WINDER TO WITHDRAW CRIMPED YARN UNDER TENSION FROM SAID OTHER END OF SAID CHAMBER, AND CONTROL MEANS RESPONSIVE TO MOVEMENT OF SAID MEMBER AND ACTING ON SAID WINDER TO VARY THE YARN SLIPPAGE IN A SENSE TO MAINTAIN A CONSTANT QUANTITY OF YARN IN SAID CHAMBER.
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) | 1959-04-10 | 1959-10-10 | 1960-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-10 | 1963-10-10 | 1964-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-10 | 1967-10-10 | 1968-04-10 | $7700.00 | Window Closed / Lapsed |