US3591952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Open end spinning apparatus
Assignee: Vyzkumny Ustav Bavlnarsky AS
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Filing: 1969-08-08
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Granted: 1971-07-13
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Expires: 1989-08-08
Abstract
Abstract A spinning apparatus comprises a rotary spinning chamber mounted for rotation about a first axis and having in its interior an internal circumferential slip surface concentric with this first axis and onto which fibers to be spun are to be deposited. A carding roller is mounted for rotation about a second axis, and a fiber supply channel connects the carding roller with the interior of the spinning chamber to transmit fibers from the carding roller to the spinning chamber. The outlet opening of the supply channel is located in a plane paralleling the first axis of rotation of the spinning chamber and is so configurated as to discharge fibers at right angles to this first axis onto an area of the slip surface which corresponds in outline at least substantially to the configuration of the outlet opening.
Inventors
- 👤 Josef Ripka
- 👤 Frantisek Hortlik
- 👤 Jan Junek
- 👤 Milan Marsalek
- 👤 Stanislav Kabele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:13
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/30; D01H4/32
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
145 words
A spinning apparatus comprising, in combination, a rotary spinning chamber mounted for rotation about a first axis of rotation and having an internal circumferential slip surface concentric with said first axis and onto which fibers to be spun are to be deposited; a carding roller mounted for rotation about a second axis of rotation which defines with a plane normal to said first axis of rotation a predetermined acute angle; and fiber supply channel means connecting said carding roller and said spinning chamber for receiving fibers from the former and supplying them to the latter, said channel means having an outlet opening located in a plane paralleling said first axis of rotation and configurated for discharging fibers at right angles to said first axis onto an area of said slip surface which corresponds in outline at least substantially to the configuration of said outlet opening.
Claim 2
Dependent Claim
145 words
A spinning apparatus comprising, in combination, a rotary spinning chamber mounted for rotation about a first axis of rotation and having an internal circumferential slip surface concentric with said first axis and onto which fibers to be spun are to be deposited; a carding roller mounted for rotation about a second axis of rotation which defines with a plane normal to said first axis of rotation a predetermined acute angle; and fiber supply channel means connecting said carding roller and said spinning chamber for receiving fibers from the former and supplying them to the latter, said channel means having an outlet opening located in a plane paralleling said first axis of rotation and configurated for discharging fibers at right angles to said first axis onto an area of said slip surface which corresponds in outline at least substantially to the configuration of said outlet opening.
Claim 3
Dependent Claim
53 words
An apparatus as defined in claim 1, wherein said channel means has a longitudinal axis and a major and a minor cross-sectional dimension, and whereIn a plane coincident with said longitudinal axis and with said major cross-sectional dimension is at least substantially parallel to said second axis of rotation of said carding roller.
Claim 4
Dependent Claim
81 words
An apparatus as defined in claim 1, wherein said channel means has a major and a minor cross-sectional dimension and is bounded by two wider sidewalls extending in direction of said major, and two narrower sidewalls extending between said wider sidewalls in direction of said minor cross-sectional dimension, and wherein at least one of said major sidewalls at least in the region of said outlet opening is at least substantially parallel to said second axis of rotation of said carding roller.
Claim 5
Dependent Claim
22 words
An apparatus as defined in claim 1, wherein said first and second axes are located in a plane common to them both.
Claim 6
Dependent Claim
20 words
An apparatus as defined in claim 1, wherein said acute angle is in the range between substantially 5* and 25*.
Claim 7
Dependent Claim
17 words
An apparatus as defined in claim 1, wherein said acute angle corresponds at least substantially to 12*.
Claim 8
Dependent Claim
29 words
An apparatus as defined in claim 1; further comprising a mounting element mounting at least said carding roller for rotation, said channel means being provided in said mounting element.
Claim 9
Dependent Claim
24 words
An apparatus as defined in claim 1, wherein said channel means has a longitudinal axis eccentric with reference to said first axis of rotation.
Claim 10
Dependent Claim
21 words
An apparatus as defined in claim 1; and further comprising drive means for rotating said spinning chamber and said carding roller.
Claim 11
Dependent Claim
37 words
An apparatus as defined in claim 1, wherein said channel means has an inlet portion communicating with said carding roller, and wherein said channel means is at least substantially straight at least downstream of said inlet portion.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |