US3944166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for compensating short-term fluctuations in thread tension during feeding of thread to winding machines and the like
Assignee: FMN Schuster GmbH and Co KG
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Filing: 1973-11-07
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Granted: 1976-03-16
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Expires: 1993-11-07
Abstract
Abstract A method and apparatus is provided for compensating short duration thread tension fluctuations during feed of thread to a textile machine. The method includes blowing a jet of fluid medium along the thread in a direction opposite to the direction of travel of the thread from a delivery zone to a thread takeup zone. The blown jet of fluid medium produces a deflection of the thread from its straight path to form a storage or reserve of the thread from which thread may be taken during short-term fluctuations. The apparatus includes various forms of a blower mechanism and control means for providing the necessary storage or reserve of thread along its path of travel.
Inventors
- 👤 Peter Hermanns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 16:03
CPC Classifications
B; B65; B65H; B65H59/00; B65H59/10; B65H59/105; B65H2701/00; B65H2701/30; B65H2701/31
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
143 words
A method of compensating for short term fluctuations in thread tension during feeding of a thread to a working station that demands a varying amount of thread length during operation, said method comprising: a. supplying thread to run freely along a straight path zone at a constant speed from a delivery zone, b. said straight path zone having a downstream end and an upstream end, c. blowing a first jet of fluid medium along the thread from the downstream end in a direction opposite to the direction of travel of the thread, and d. blowing a second jet of fluid medium along the thread from the upstream end toward said first jet, e. said blowing jets of fluid medium being effective to produce a reserve supply of thread within the straight path zone by causing a thread deflection away from the straight path.
Claim 2
Independent Claim
143 words
A method of compensating for short term fluctuations in thread tension during feeding of a thread to a working station that demands a varying amount of thread length during operation, said method comprising: a. supplying thread to run freely along a straight path zone at a constant speed from a delivery zone, b. said straight path zone having a downstream end and an upstream end, c. blowing a first jet of fluid medium along the thread from the downstream end in a direction opposite to the direction of travel of the thread, and d. blowing a second jet of fluid medium along the thread from the upstream end toward said first jet, e. said blowing jets of fluid medium being effective to produce a reserve supply of thread within the straight path zone by causing a thread deflection away from the straight path.
Claim 3
Dependent Claim
49 words
A method as defined in claim 1 wherein a thread winding machine having a thread guide device reciprocating along the length of a reverse thread roller is provided and the blowing of said first and second jets is effected between the delivery zone and the reciprocating thread guide device.
Claim 4
Dependent Claim
30 words
A method as defined in claim 1 further including causing turbulence in the blown jets of fluid medium to cause deflections in the straight path zone traveled by said thread.
Claim 5
Dependent Claim
17 words
A method as defined in claim 1 wherein said blown fluid medium is steam or a liquid.
Claim 6
Independent Claim
161 words
A method of delivering thread to a thread package, comprising: a. supplying thread to run freely along a straight path zone at a constant speed from a delivery supply zone, b. said straight path zone having a downstream end and an upstream end, c. blowing a first jet of fluid medium along the thread from the downstream end in a direction opposite to the direction of travel of the thread, and d. blowing a second jet of fluid medium along the thread from the upstream end toward said first jet, e. said blowing jets of fluid medium being effective to produce a reserve supply of thread within the straight path zone by causing a thread deflection away from the straight path, f. reciprocating a thread guide device along the length of a reverse thread roller rotatably mounted adjacent the thread package, and g. directing the thread from the straight path zone through said thread guide device and onto the thread package.
Claim 7
Independent Claim
161 words
A method of delivering thread to a thread package, comprising: a. supplying thread to run freely along a straight path zone at a constant speed from a delivery supply zone, b. said straight path zone having a downstream end and an upstream end, c. blowing a first jet of fluid medium along the thread from the downstream end in a direction opposite to the direction of travel of the thread, and d. blowing a second jet of fluid medium along the thread from the upstream end toward said first jet, e. said blowing jets of fluid medium being effective to produce a reserve supply of thread within the straight path zone by causing a thread deflection away from the straight path, f. reciprocating a thread guide device along the length of a reverse thread roller rotatably mounted adjacent the thread package, and g. directing the thread from the straight path zone through said thread guide device and onto the thread package.
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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) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |