Patent US3712042A successfully refreshed from Google Patents.
US3712042A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of withdrawing fibers from a combing roller of a fiber separating device and device for performing said method
Assignee: Vyzkumny Ustav Bavlnarsky AS
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Filing: 1970-09-10
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Granted: 1973-01-23
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Expires: 1990-09-10
Abstract
Abstract In a spinning unit comprising a fiber separating device and a spinning device, fibers are separated by withdrawing the fibers from a combing roller of the fiber separating device by a pressure air stream, directed tangentially to the working surface of the combing roller and conveying the fibers to a sliding wall of the rotary spinning chamber.
Inventors
- 👤 M Chrtek
- 👤 C Doudlebsky
- 👤 S Kabele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:29
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
83 words
In a method of spinning fibers in a rotary spinning chamber, the steps of rotating a spinning chamber having an open side about an axis; rotating adjacent said open side a fiber-combing roller having a circumferential working surface; feeding fibers onto said working surface for engagement and entrainment thereby; and directing a stream of pressurized air substantially tangentially over said working surface for separating the entrained fibers therefrom, and thence with the separated fibers through said open side into the rotating spinning chamber.
Claim 2
Dependent Claim
83 words
In a method of spinning fibers in a rotary spinning chamber, the steps of rotating a spinning chamber having an open side about an axis; rotating adjacent said open side a fiber-combing roller having a circumferential working surface; feeding fibers onto said working surface for engagement and entrainment thereby; and directing a stream of pressurized air substantially tangentially over said working surface for separating the entrained fibers therefrom, and thence with the separated fibers through said open side into the rotating spinning chamber.
Claim 3
Dependent Claim
29 words
In a method as defined in claim 1, the further step of conditioning the air of said stream of pressurized air prior to directing it over said working surface.
Claim 4
Dependent Claim
31 words
In a method as defined in claim 1, the further step of adjusting the quantity and pressure of said stream of pressurized air prior to directing it over said working surface.
Claim 5
Dependent Claim
105 words
In a fiber-spinning apparatus, in combination, a rotary spinning chamber having an open side; a rotary fiber-combing roller adjacent said open side and having a circumferential working surface adapted to receive and entrain fibers to be spun in said spinning chamber; passage means extending tangentially of said working surface in communication therewith and having an inlet and an outlet within said open side; and compressed air supply means communicating with said inlet and directing through said passage means a stream of compressed air for entraining fibers from said working surface and inserting the thus entrained fibers through said open side into said rotary spinning chamber.
Claim 6
Dependent Claim
105 words
In a fiber-spinning apparatus, in combination, a rotary spinning chamber having an open side; a rotary fiber-combing roller adjacent said open side and having a circumferential working surface adapted to receive and entrain fibers to be spun in said spinning chamber; passage means extending tangentially of said working surface in communication therewith and having an inlet and an outlet within said open side; and compressed air supply means communicating with said inlet and directing through said passage means a stream of compressed air for entraining fibers from said working surface and inserting the thus entrained fibers through said open side into said rotary spinning chamber.
Claim 7
Dependent Claim
26 words
In an apparatus as defined in claim 4; and further comprising conditioning means for conditioning said compressed air intermediate said supply means and said fiber-combing roller.
Claim 8
Dependent Claim
24 words
In an apparatus as defined in claim 4; and further comprising control means for controlling the flow conditions of said stream of compressed air.
References Cited (Backward Citations)
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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) | 1976-01-23 | 1976-07-24 | 1977-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-23 | 1980-07-24 | 1981-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-23 | 1984-07-24 | 1985-01-23 | $7700.00 | Window Closed / Lapsed |