US3580444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for localizing an excess in length in a thread
Assignee: Machinefabriek L te Strake NV
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Filing: 1968-08-26
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Granted: 1971-05-25
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Expires: 1988-08-26
Abstract
Abstract This device, which is adapted to be interposed between a device for continuously supplying a thread and a device for intermittently conveying the thread, comprises first and second thread-guiding elements, between which is a space in which an excess in length in the thread can hang down from such elements in the form of a loop. A downward-directed nozzle is arranged adjacent to the first thread-guiding element, through which thread enters the loop, for discharging fluid downward along the descending leg of the loop in order to place the descending leg under tension so as to prevent the loop from tangling. The ascending leg of the loop is relatively free of tension.
Inventors
- 👤 Hubert P Van Mullekom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:04
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/34; D03D47/36; D03D47/368
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
156 words
A device for localizing an excess in length in a thread, adapted to be interposed between a device for continuously supplying a thread and a device for intermittently conveying the thread, wherein the improvement comprises first and second thread-guiding elements between which is a space in which an excess in length in the thread can hang down from the threadguiding elements in the form of a loop, a baffle extending downward from the first and second thread-guiding elements, adjacent and parallel to the loop of thread which hangs down from such elements, to shield the loop against air currents, and a downward-directed nozzle, arranged adjacent to the first threadguiding element, through which the thread enters the loop, for discharging fluid downward along the descending leg of the loop in order to place the descending leg under tension so as to prevent the loop from tangling, the ascending leg of the loop being relatively free of tension.
Claim 2
Independent Claim
156 words
A device for localizing an excess in length in a thread, adapted to be interposed between a device for continuously supplying a thread and a device for intermittently conveying the thread, wherein the improvement comprises first and second thread-guiding elements between which is a space in which an excess in length in the thread can hang down from the threadguiding elements in the form of a loop, a baffle extending downward from the first and second thread-guiding elements, adjacent and parallel to the loop of thread which hangs down from such elements, to shield the loop against air currents, and a downward-directed nozzle, arranged adjacent to the first threadguiding element, through which the thread enters the loop, for discharging fluid downward along the descending leg of the loop in order to place the descending leg under tension so as to prevent the loop from tangling, the ascending leg of the loop being relatively free of tension.
Claim 3
Dependent Claim
29 words
A device according to claim 1, wherein the baffle is provided, along its two vertical edges, with two sidewalls for confining and shielding the two legs of the loop.
Claim 4
Independent Claim
161 words
A device for localizing an excess in length in a thread, adapted to be interposed between a device for continuously supplying a thread and a device for intermittently conveying the thread, wherein the improvement comprises first and second thread-guiding elements, between which is a space in which an excess in length in the thread can hang down from the thread-guiding elements in the form of a loop, and a downward-directed nozzle, arranged adjacent to the first thread-guiding element, through which the thread enters the loop, for discharging fluid downward along the descending leg of the loop in order to place the descending leg under tension so as to prevent the loop from tangling a second downward-directed nozzle, the fluid discharging capacity of which is substantially smaller than that of the first nozzle, arranged adjacent to the second thread-guiding element, for discharging fluid downward along the ascending leg of the loop, the ascending leg of the loop being relatively free of tension.
Claim 5
Independent Claim
161 words
A device for localizing an excess in length in a thread, adapted to be interposed between a device for continuously supplying a thread and a device for intermittently conveying the thread, wherein the improvement comprises first and second thread-guiding elements, between which is a space in which an excess in length in the thread can hang down from the thread-guiding elements in the form of a loop, and a downward-directed nozzle, arranged adjacent to the first thread-guiding element, through which the thread enters the loop, for discharging fluid downward along the descending leg of the loop in order to place the descending leg under tension so as to prevent the loop from tangling a second downward-directed nozzle, the fluid discharging capacity of which is substantially smaller than that of the first nozzle, arranged adjacent to the second thread-guiding element, for discharging fluid downward along the ascending leg of the loop, the ascending leg of the loop being relatively free of tension.
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) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |