Patent US3798886A successfully refreshed from Google Patents.
US3798886A
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Self-cleaning spinning arrangement for use with textile machines
Assignee: Elitex Zavody Textilniho
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Filing: 1971-12-16
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Granted: 1974-03-26
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Expires: 1991-12-16
Abstract
Abstract A self-cleaning spinning arrangement for use with textile machines, particularly open end spinning machines, includes a rotatable spinning chamber which has a fiber-collecting surface. Supply means supplies carded fibrous material, together with incidental impurities, for deposition onto the collecting surface in the form of a fiber ribbon which is to be converted into yarn. Withdrawal means withdraws fibrous material from the collecting surface, in form of yarn which travels along a yarn withdrawal path. Pneumatic cleaning means provided in the region of the collecting surface automatically entrains the impurities and continuously removes them from the spinning chamber during operation of the latter.
Inventors
- 👤 J Rajnoha
- 👤 L Bures
- 👤 B Burget
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:10
CPC Classifications
D; D01; D01H; D01H4/00; D01H4/04; D01H4/22; D01H4/24
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
160 words
Self-cleaning spinning arrangement for use in textile machines, particularly open end spinning machines, comprising a housing; a rotatable spinning chamber mounted for rotation in said housing and having a fiber-collecting surface; supply means for supplying carded fibrous material, together with incidental impurities, for deposition onto said collecting surface in the form of a fiber ribbon which becomes converted into a yarn during operation of said spinning chamber; withdrawal means for withdrawing such yarn from said collecting surface along a yarn withdrawal path; and pneumatic cleaning means for continuously entraining and removing said impurities from said spinning chamber during said conversion of said fiber ribbon into a yarn, comprising a bypass channel opening onto said collectinG surface and at least one ventilation passage provided in a lateral wall of said bypass channel, said bypass channel and said ventilation passage cooperating for establishing a passage for escape of a pneumatic medium with entrained impurities from said collecting surface and said spinning chamber.
Claim 2
Dependent Claim
160 words
Self-cleaning spinning arrangement for use in textile machines, particularly open end spinning machines, comprising a housing; a rotatable spinning chamber mounted for rotation in said housing and having a fiber-collecting surface; supply means for supplying carded fibrous material, together with incidental impurities, for deposition onto said collecting surface in the form of a fiber ribbon which becomes converted into a yarn during operation of said spinning chamber; withdrawal means for withdrawing such yarn from said collecting surface along a yarn withdrawal path; and pneumatic cleaning means for continuously entraining and removing said impurities from said spinning chamber during said conversion of said fiber ribbon into a yarn, comprising a bypass channel opening onto said collectinG surface and at least one ventilation passage provided in a lateral wall of said bypass channel, said bypass channel and said ventilation passage cooperating for establishing a passage for escape of a pneumatic medium with entrained impurities from said collecting surface and said spinning chamber.
Claim 3
Dependent Claim
44 words
Arrangement as defined in claim 1, and further including a deflecting element positioned in the path of yarn withdrawal, whereby withdrawn yarn is constrained to pass across said deflecting element, said bypass channel being in part defined by a portion of said deflecting element.
Claim 4
Dependent Claim
25 words
Arrangement as defined in claim 2, wherein said collecting surface, bypass channel and deflecting element are of substantially annular configuration and concentric with each other.
Claim 5
Dependent Claim
67 words
Arrangement as defined in claim 3, and further including a peripheral surface adjoining said fibercollecting surface, spaced from said deflecting element, and defining with said deflecting element a first clearance, said collecting surface defining with said deflecting element a second clearance communicating with said first clearance and with said bypasss channel, the width of said second clearance being substantially 1.5 times the width of said first clearance.
Claim 6
Dependent Claim
27 words
Arrangement as defined in claim 1, and further including blocking means for preventing undesired removal of said fibrous material from said spinning chamber together with entrained impurities.
Claim 7
Dependent Claim
17 words
Arrangement as defined in claim 5, wherein said blocking means is in the form of a mesh.
Claim 8
Dependent Claim
24 words
Arrangement as defined in claim 5, wherein said blocking means comprises spaced projections permitting passage of air therebetween but preventing passage of fibrous material.
Claim 9
Dependent Claim
22 words
Arrangement as defined in claim 5, wherein said blocking means are mounted on a yarn deflecting element located within said spinning chamber.
Claim 10
Dependent Claim
19 words
Arrangement as defined in claim 5, wherein said blocking means are mounted in a channel of said spinning chamber.
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |