US3792575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and apparatus for separating impurities from fibers during cleaning of the fibers
Assignee: Individual
•
Filing: 1972-03-22
•
Granted: 1974-02-19
•
Expires: 1992-03-22
Abstract
Abstract Method of and apparatus for separating impurites from fibers during their cleaning between the zone of combing-out and the zone of doffing during separating which precedes the spinning of the fibers by the open-end method. A cleaning slot guides an air stream onto the combing-out roller of the cleaning mechanism, said air stream driving the impurities into a collecting area, while preventing the separated fibers from flying away. The apparatus shown comprises a separating device of a ringless spinning unit, with a cleaning slot between the combing-out zone and the doffing zone. The body of the separating device comprises a cleaning chamber with a cleaning hole forming a cleaning slot into which the tips of the combing-out roller project, there being a separating channel at the one side of the cleaning hole oriented with respect to said cleaning hole, the other side bearing a reflecting wall and an adjacent exhaust hole.
Inventors
- 👤 C Doudlebsky
- 👤 A Cap
- 👤 F Jaros
- 👤 F Ferkl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:44
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/30; D01H4/36
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
100 words
In a method of treatment of fibers wherein impurities are separated from the fibers between a zone of combing-out the fibers by a combing-out roller and a zone of doffing of the cleaned fibers preceding a zone of spinning of the fibers by the open-end method, the improvement which comprises guiding an air stream from the atmosphere onto the combing-put roller by a cleaning slot, driving the impurities by said air stream into a collecting area and removing them therefrom, preventing the separated fibers from flying away into the collecting area, and introducing the separated fibers into the spinning zone.
Claim 2
Dependent Claim
100 words
In a method of treatment of fibers wherein impurities are separated from the fibers between a zone of combing-out the fibers by a combing-out roller and a zone of doffing of the cleaned fibers preceding a zone of spinning of the fibers by the open-end method, the improvement which comprises guiding an air stream from the atmosphere onto the combing-put roller by a cleaning slot, driving the impurities by said air stream into a collecting area and removing them therefrom, preventing the separated fibers from flying away into the collecting area, and introducing the separated fibers into the spinning zone.
Claim 3
Dependent Claim
125 words
In fiber treating apparatus having a fiber combing-out roller, an impurity-separating zone following said combing-out roller, a zone of doffing following the impurity separating zone, and means for spinning the cleaned fibers by the open-end method, the improvement which comprises a separating device having a body with a cleaning slot between the conbing-out zone and the doffing zone, the separating device having a body with a cleaning chamber with a cleaning hole forming a cleaning slot into which the tips of tHe combing-out roller project at the one side of the cleaning hole, there being a separating channel connected to said cleaning hole at the other side of the cleaning hole, and there being a reflecting wall, the reflecting wall having an exhaust port therein.
Claim 4
Dependent Claim
125 words
In fiber treating apparatus having a fiber combing-out roller, an impurity-separating zone following said combing-out roller, a zone of doffing following the impurity separating zone, and means for spinning the cleaned fibers by the open-end method, the improvement which comprises a separating device having a body with a cleaning slot between the conbing-out zone and the doffing zone, the separating device having a body with a cleaning chamber with a cleaning hole forming a cleaning slot into which the tips of tHe combing-out roller project at the one side of the cleaning hole, there being a separating channel connected to said cleaning hole at the other side of the cleaning hole, and there being a reflecting wall, the reflecting wall having an exhaust port therein.
Claim 5
Dependent Claim
23 words
Apparatus according to claim 2, wherein the cleaning chamber is readily removably mounted in a recess in the body of the separating device.
Claim 6
Dependent Claim
62 words
Apparatus according to claim 1, wherein one wall of the separating channel is formed by a part of the wall of the recess in the body of the separating device, and the opposite wall is formed by the directing wall, the directing wall being in the form of a bent flap having its free edge confronting and spaced from the combing-out roller.
Claim 7
Dependent Claim
24 words
Apparatus according to claim 2, wherein the edge of the reflecting wall which confronts the combing-out roller has the form of a cutting edge.
Claim 8
Dependent Claim
19 words
Apparatus according to claim 2, wherein the edge of the reflecting wall confronting the combing-out roller is rounded off.
Claim 9
Dependent Claim
49 words
Apparatus according to claim 2, wherein the edge of the reflecting wall confronting the combing-out roller is partially formed by a sloping wall disposed at a predetermined angle with the adjacent part of the combing-out roller, said sloping wall merging with an arcuate wall spaced from the combing-out roller.
Claim 10
Dependent Claim
20 words
Apparatus according to claim 2, wherein a hole is disposed in the cleaning chamber coaxially with the exhaust hole port.
Claim 11
Dependent Claim
21 words
Apparatus according to claim 2, wherein the end of the flap adjacent its free edge is bent toward the exhaust port.
Claim 12
Dependent Claim
22 words
Apparatus according to claim 5, wherein the edge of the reflecting wall adjacent to the combing-out roller is made of anti-abrasive material.
Claim 13
Dependent Claim
22 words
Apparatus according to claim 2, wherein the cleaning chamber has a substantially circular shape in a section perpendicular to the cleaning slot.
Claim 14
Dependent Claim
20 words
Apparatus according to claim 2, wherein the cleaning slot is parallel to the axis of rotation of the combing-out roller.
Claim 15
Dependent Claim
22 words
Apparatus according to claim 2, wherein the cleaning slot is inclined with respect to the axis of rotation of the combing-out roller.
References Cited (Backward Citations)
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US3357535A
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US3550368A
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US3626681A
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US3627584A
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US3698175A
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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) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |