Patent US2578332A successfully refreshed from Google Patents.
US3268971A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electro-mechanical apparatus for crimping yarn or the like
Assignee: Joseph Bancroft and Sons Co
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Filing: 1962-12-19
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Granted: 1966-08-30
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Expires: 1982-12-19
Abstract
No abstract record available.
Inventors
- 👤 Jr Russell C Lockwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:45
CPC Classifications
D; D02; D02G; D02G1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
APPARATUS FOR BULKING YARN OR THE LIKE COMPRISING A CHARGING ZONE INCLUDING A PAIR OF ELECTRIC CONTACT ELEMENTS CARRYING A HIGH VOLTAGE CHARGE AND AN ELECTROMAGNET HAVING A CONCENTRATED ALTERNATING FLUX PATH, FEED ROLLS FEEDING SAID YARN TO SAID CHARGING ZONE AND TO SAID ELECTROMAGNET IN A PATH EXTENDING ACROSS THE AXIS OF SAID CONCENTRATED FLUX PATH AND A PAIR OF DELIVERY ROLLS CONTACTING SAID YARN BEYOND SAID ELECTROMAGNET, SAID FEED ROLLS AND SAID DELIVERY ROLLS BEING DRIVEN AT A FIXED RATIO ADAPTED TO MAINTAIN THE CRIMPED YARN UNDER A PREDETERMINED TENSION.
Claim 2
Dependent Claim
92 words
APPARATUS FOR BULKING YARN OR THE LIKE COMPRISING A CHARGING ZONE INCLUDING A PAIR OF ELECTRIC CONTACT ELEMENTS CARRYING A HIGH VOLTAGE CHARGE AND AN ELECTROMAGNET HAVING A CONCENTRATED ALTERNATING FLUX PATH, FEED ROLLS FEEDING SAID YARN TO SAID CHARGING ZONE AND TO SAID ELECTROMAGNET IN A PATH EXTENDING ACROSS THE AXIS OF SAID CONCENTRATED FLUX PATH AND A PAIR OF DELIVERY ROLLS CONTACTING SAID YARN BEYOND SAID ELECTROMAGNET, SAID FEED ROLLS AND SAID DELIVERY ROLLS BEING DRIVEN AT A FIXED RATIO ADAPTED TO MAINTAIN THE CRIMPED YARN UNDER A PREDETERMINED TENSION.
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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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |