Patent US3865149A successfully refreshed from Google Patents.
US3865149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for storing a thread portion
Assignee: Ruti Machinery Works Ltd
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Filing: 1973-06-04
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Granted: 1975-02-11
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Expires: 1993-06-04
Abstract
Abstract The present invention relates to a device for a weaving loom for storing a thread piece or portion of varying length and which is subjected to the action of a stream of fluid such as air endeavoring to retain the said thread end between two predetermined locations, in the form of a thread loop, there being effected continuous delivery of the thread at one of the said predetermined locations and, at the other of the said predetermined locations, periodic drawing-off of the thread when the latter is inserted into a shed of the loom with the aid of pick inserter means.
Inventors
- 👤 Rachid Keldany
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 12:56
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/34; D03D47/36; D03D47/368
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
216 words
A device for the storage of a thread portion of varying length which is subjected to an air stream that retains said thread portion in the form of a loop between a first and a second predetermined location, the end of one of the leg portions of said loop being adjacent to the first predetermined location and the end of the other leg portion of the loop being adjacent to said second predetermined location, an air injector means for continuous delivery of a thread from said first predetermined location to form said loop and means for periodic draw-off of the thread portion from said loop after said loop is formed, said draw-off taking place at said second predetermined location, from which the thread is inserted into a shed of a loom with the aid of weft thread inserter means, there being provided two elongate plates for guiding and shaping the air stream forming said loop, which plates are disposed opposite each other at their broad sides and form an elongated interspace therebetween in the longitudinal direction of which blow-in of the air stream supplied by the injector means takes place and which elongated interspace is open to the outside, forming an open slot along its long side located on the side of said second predetermined location.
Claim 2
Independent Claim
216 words
A device for the storage of a thread portion of varying length which is subjected to an air stream that retains said thread portion in the form of a loop between a first and a second predetermined location, the end of one of the leg portions of said loop being adjacent to the first predetermined location and the end of the other leg portion of the loop being adjacent to said second predetermined location, an air injector means for continuous delivery of a thread from said first predetermined location to form said loop and means for periodic draw-off of the thread portion from said loop after said loop is formed, said draw-off taking place at said second predetermined location, from which the thread is inserted into a shed of a loom with the aid of weft thread inserter means, there being provided two elongate plates for guiding and shaping the air stream forming said loop, which plates are disposed opposite each other at their broad sides and form an elongated interspace therebetween in the longitudinal direction of which blow-in of the air stream supplied by the injector means takes place and which elongated interspace is open to the outside, forming an open slot along its long side located on the side of said second predetermined location.
Claim 3
Dependent Claim
36 words
A device according to claim 1 in which said second predetermined location is arranged at a distance from the open slot of said two elongate plates and physically separated from and outside of said two plates.
Claim 4
Dependent Claim
51 words
A device according to claim 1 in which said elongated interspace, along its lengthwise side located on the side of said fiRst predetermined location is closed at the inflow location of the air stream forming said loop and open to a progressive extent with increasing distance from the said inflow location.
Claim 5
Dependent Claim
55 words
A device according to claim 3 in which there are formed in the longitudinal side, located on the side of said first predetermined location, of the elongated interspace, apertures, the dimensioning of which is such that the apex of the thread loop is located continuously externally of the interspace and at a predetermined distance therefrom.
Claim 6
Dependent Claim
73 words
A device according to claim 3 in which an auxiliary nozzle means in provided for generating an auxiliary stream of air flowing in said interspace, which said auxiliary stream of air is directed, in relationship to the direction of the air stream forming said loop, obliquely relative thereto and obliquely towards the longitudinal side of the interspace, located on the side of said first predetermined location, and which said auxiliary stream is controllable.
Claim 7
Dependent Claim
30 words
A device according to claim 3 in which each of said plates has the shape of a curved ring sector located in one plane to form a curved interspace therebetween.
Claim 8
Dependent Claim
32 words
A device according to claim 1 in which said two plates extend in conical configuration towards each other and towards their longitudinal edges located on the side of said second predetermined location.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |