US4060966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for spinning textile fibers
Assignee: Textilmaschinenfabrik Dr Ernst Fehrer AG
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Filing: 1977-01-07
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Granted: 1977-12-06
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Expires: 1997-01-07
Abstract
Abstract Two juxtaposed drums are arranged to rotate in the same sense and are closely spaced apart to define between them a throat and two gaps tapering towards the throat on opposite sides thereof. The drums are operable to engage flying fibers entering one of the gaps and to twist the fibers together so as to form a twisted yarn. Draw-off rolls are provided for withdrawing the twisted yarn from the throat in the longitudinal directon thereof. A suction duct extends into the other gap and has an inlet slot which extends along the throat.
Inventors
- 👤 Franz Konig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:14
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/04; D01H4/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
An apparatus for spinning textile fibers, which comprises a. two juxtaposed drums having axes extending parallel to each other and arranged to rotate in the same sense, 1. the drums being closely spaced apart to define therebetween a throat extending parallel to said axes and two like gaps tapering towards said throat at opposite sides thereof, and 2. the drums being operable to engage flying fibers entering one of the gaps at one side of the throat and to twist the fibers together in the throat to form a twisted fiber product, b. draw-off means arranged to withdraw the twisted fiber product from the throat in the direction of the throat, and c. a suction duct extending into the other gap at the opposite side of the throat and having an inlet slot extending along and facing the throat.
Claim 2
Independent Claim
139 words
An apparatus for spinning textile fibers, which comprises a. two juxtaposed drums having axes extending parallel to each other and arranged to rotate in the same sense, 1. the drums being closely spaced apart to define therebetween a throat extending parallel to said axes and two like gaps tapering towards said throat at opposite sides thereof, and 2. the drums being operable to engage flying fibers entering one of the gaps at one side of the throat and to twist the fibers together in the throat to form a twisted fiber product, b. draw-off means arranged to withdraw the twisted fiber product from the throat in the direction of the throat, and c. a suction duct extending into the other gap at the opposite side of the throat and having an inlet slot extending along and facing the throat.
References Cited (Backward Citations)
US3636693A
Cited
US3635006A
Cited
US3898788A
Cited
US3913310A
Cited
US3981137A
Cited
US3972173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-12-05 | 1981-06-06 | 1981-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-05 | 1985-06-06 | 1985-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-05 | 1989-06-06 | 1989-12-06 | $7700.00 | Window Closed / Lapsed |