Patent US3609951A successfully refreshed from Google Patents.
US3609951A
Expired / Lapsed
US
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Fume and vapor collecting apparatus for false twisting machines
Assignee: Individual
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Filing: 1969-12-17
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Granted: 1971-10-05
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Expires: 1989-12-17
Abstract
Abstract A SUCTION SYSTEM INCLUDING STRATEGICALLY POSITIONED NOZZLES FOR COLLECTING FUMES AND VAPORS ENTRAPPED WITHIN A PAIR OF TWISTED YARNS PASSING THROUGH THE HEAT-SETTING CHAMBER OF A FALSE TWIST MACHINE AND RELEASED AT SUBSEQUENT PROCESSING POINTS DUE TO THE FLEXING AND BENDING OF THE PAIR. THE SYSTEM FURTHER INCLUDES A SHIELD COVERING THE OPEN SIDE OF THE HEAT-CHAMBER TO PREVENT ESCAPE OF THE FUMES AND VAPORS TO THE ATMOSPHERE.
Inventors
- 👤 Allen Reese Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:26
CPC Classifications
D; D02; D02J; D02J13/00; D02J13/008
Claims Analysis
Total Claims: 0
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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) | 1974-10-04 | 1975-04-05 | 1975-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-04 | 1979-04-05 | 1979-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-04 | 1983-04-05 | 1983-10-05 | $7700.00 | Window Closed / Lapsed |