US3789597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the spindleless spinning of textile fibers
Assignee: SKF GmbH
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Filing: 1972-06-20
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Granted: 1974-02-05
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Expires: 1992-06-20
Abstract
Abstract Spindleless twisting apparatus employing a rotating open face spinning chamber provided with a coaxially arranged outlet through which the spun thread is pulled from its binding or splicing point on the wall of the chamber. The outlet is provided at, at least its end, adjacent the chamber and arranged sequentially in the direction of travel of the thread, at first deflecting zone, with a frictional contact or rubbing zone, followed immediately thereafter with at least one additional deflecting zone.
Inventors
- 👤 R Schon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:32
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/40
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
72 words
Apparatus for spinning textile fibers in a spindleless spinning device having an open face spinning turbine and a coaxially arranged outlet for withdrawing thread, said outlet being provided at its end adjacent the spinning chamber, with means having a sequential array, in the direction of thread travel, of at least a first deflecting zone, a frictional rubbing zone and immediately thereafter at least one additional deflecting zone over which said thread passes.
Claim 2
Dependent Claim
72 words
Apparatus for spinning textile fibers in a spindleless spinning device having an open face spinning turbine and a coaxially arranged outlet for withdrawing thread, said outlet being provided at its end adjacent the spinning chamber, with means having a sequential array, in the direction of thread travel, of at least a first deflecting zone, a frictional rubbing zone and immediately thereafter at least one additional deflecting zone over which said thread passes.
Claim 3
Dependent Claim
25 words
Apparatus according to claim 1 including at least one additional friction rubBing zone interposed between the first and the last of said additional deflecting zones.
Claim 4
Dependent Claim
41 words
The apparatus according to claim 1 wherein said means having said deflecting and rubbing zones is a tubular member insertable in said outlet, said zones being defined by annular bands formed in the surface of the inner bore of said tube.
Claim 5
Dependent Claim
34 words
The apparatus according to claim 3 wherein the total change in the angle of deflection in the direction of travel of the thread is approximately uniformly proportioned over the individual deflecting and rubbing zones.
Claim 6
Dependent Claim
37 words
The apparatus according to claim 3 wherein the deflecting and rubbing zones are arranged and/or constructed so that the thread touches them only along a substantially linear zone forming a contacting line rather than a contacting area.
Claim 7
Dependent Claim
14 words
The apparatus according to claim 3 wherein the annular bands are of varying diameter.
Claim 8
Dependent Claim
18 words
The apparatus according to claim 3 wherein the frictional rubbing surfaces are formed of uniformly spaced teeth members.
Claim 9
Dependent Claim
22 words
The apparatus according to claim 7 wherein the teeth members lie in an axis perpendicular to the axis of the tubular insert.
Claim 10
Dependent Claim
28 words
The apparatus according to claim 3 including an additional array or sequentially arranged deflecting and rubbing surfaces located at the end of the outlet opposite the spinning chamber.
Claim 11
Dependent Claim
11 words
Apparatus according to claim 3 wherein said tubular inserts are interchangeable.
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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |