Patent US4249467A successfully refreshed from Google Patents.
US3225533A
Expired / Lapsed
US
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Apparatus and process for forming yarns and other twisted assemblies
Assignee: Commonwealth Scientific and Industrial Research Organisation
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Filing: 1962-10-18
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Granted: 1965-12-28
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Expires: 1982-10-18
Abstract
No abstract record available.
Inventors
- 👤 Henshaw David Ernest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:30
CPC Classifications
D; D02; D02G; D02G3/00; D02G3/22; D02G3/26; D02G3/28; D02G3/286
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
APPARATUS FOR FORMING STABLE TWISTED THREADS COMPRISING FEEDING MEANS TO FEED A STRAND BETWEEN A FIRST POSITION AND A SECOND POSITION, TWISTING MEANS AT AN INTERMEDIATE POSITION BETWEEN THE FIRST AND SECOND POSITIONS, TO IMPART TO THE STRAND ALTERNATING ZONES OF OPPOSITE TWIST, SAID TWISTING MEANS INCLUDING A PAIR OF CONTRA-MOVING ELASTROMERIC SURFACES ARRANGED TO CONTACT THE STAND AND TO MOVE TRANSVERSELY OF THE LATTER AS THE STAND MOVES BETWEEN SAID SURFACES PAST THE INTERMEDIATE POSITION, SAID SURFACES FURTHER HAVING A COMPONENT OF MOTION OPPOSITE
Claim 2
Dependent Claim
85 words
APPARATUS FOR FORMING STABLE TWISTED THREADS COMPRISING FEEDING MEANS TO FEED A STRAND BETWEEN A FIRST POSITION AND A SECOND POSITION, TWISTING MEANS AT AN INTERMEDIATE POSITION BETWEEN THE FIRST AND SECOND POSITIONS, TO IMPART TO THE STRAND ALTERNATING ZONES OF OPPOSITE TWIST, SAID TWISTING MEANS INCLUDING A PAIR OF CONTRA-MOVING ELASTROMERIC SURFACES ARRANGED TO CONTACT THE STAND AND TO MOVE TRANSVERSELY OF THE LATTER AS THE STAND MOVES BETWEEN SAID SURFACES PAST THE INTERMEDIATE POSITION, SAID SURFACES FURTHER HAVING A COMPONENT OF MOTION OPPOSITE
References Cited (Backward Citations)
US2522332A
Cited
FR1082461A
Cited
US2807130A
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GB812071A
Cited
US2957302A
Cited
US2990671A
Cited
US2988867A
Cited
FR1270065A
Cited
US3120733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |