US3757506A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for the spinning of staple fibers in a ringless manner
Assignee: Fried Krupp AG
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Filing: 1972-02-08
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Granted: 1973-09-11
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Expires: 1992-02-08
Abstract
Abstract An apparatus for use in connection with the spinning of staple fibers in a ringless manner, in which the fibers withdrawn from a sliver by an opening-up roller are by means of a centrifugal disc at the bottom of said roller conveyed and directed upon an inlet wall portion of a spinning turbine.
Inventors
- 👤 G Kutscher
- 👤 R Wehling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:33
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/30; D01H4/32
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
90 words
For use in connection with the spinning of staple fibers in a ringless manner, an apparatus which includes: a rotatable spinning turbine having an inlet wall portion, rotatable openingup roller means for withdrawing fibers from a sliver, and centrifugal disc means connected to said roller means for rotation therewith, said roller means and said disc means being arranged adjacent said inlet wall portion, and the outer periphery of said disc means facing toward said inlet wall portion for directing fibers withdrawn by said roller means onto said inlet wall portion.
Claim 2
Dependent Claim
90 words
For use in connection with the spinning of staple fibers in a ringless manner, an apparatus which includes: a rotatable spinning turbine having an inlet wall portion, rotatable openingup roller means for withdrawing fibers from a sliver, and centrifugal disc means connected to said roller means for rotation therewith, said roller means and said disc means being arranged adjacent said inlet wall portion, and the outer periphery of said disc means facing toward said inlet wall portion for directing fibers withdrawn by said roller means onto said inlet wall portion.
Claim 3
Dependent Claim
30 words
An apparatus according to claim 1, in which said inlet wall portion defines a round chamber, and in which said centrifugal disc means is rotatably arranged within said round chamber.
Claim 4
Dependent Claim
24 words
An apparatus according to claim 2, in which the outer periphery of said disc means tapers in a direction away from said spinning turbine.
Claim 5
Dependent Claim
21 words
An apparatus according to claim 1, in which said centrifugal disc means is detachably and exchangeably connected to said roller means.
Claim 6
Dependent Claim
21 words
An apparatus according to claim 1, in which said centrifugal disc means forms a single unitary piece with said roller means.
Claim 7
Dependent Claim
26 words
An apparatus according to claim 1, in which the outer periphery of said disc means has a concavely arc-shaped portion facing toward said inlet wall portion.
Claim 8
Dependent Claim
31 words
An apparatus according to claim 1, in which said inlet wall portion tapers in the direction toward said disc means at an angle within the range of from 10* to 40*.
Claim 9
Dependent Claim
91 words
An apparatus according to claim 1, in which said spinning turbine has fiber collecting trough means at one end of said inlet wall portion, and in which the extension of said inlet wall portion from that end thereof which is remote from said fiber collecting trough means in the direction toward said trough means by a distance within the range of from 10 millimeters or 30 millimeters represents substantially the only area upon which the fibers are directed by said disc means and from where they slide into said trough means.
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) | 1976-09-10 | 1977-03-12 | 1977-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-10 | 1981-03-12 | 1981-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-10 | 1985-03-12 | 1985-09-11 | $7700.00 | Window Closed / Lapsed |