US3967657A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weft control device
Assignee: Draper Corp
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Filing: 1976-01-22
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Granted: 1976-07-06
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Expires: 1996-01-22
Abstract
Abstract A weft control device for shuttleless looms of the type having a pair of spring biased disc elements between which the weft is advanced for insertion into sheds of warp threads. The device is located intermediate the source of weft and the edge of the fabric being formed, and includes a driving apparatus for effecting rotation of the disc elements in a direction that will apply tension to the weft and automatically recover the development of any slack therein in the area intermediate the disc elements and the fabric edge.
Inventors
- 👤 John A. Cugini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:39
CPC Classifications
D; D03; D03D; D03D47/00; D03D47/34
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
116 words
A weft control device for looms of the shuttleless type wherein weft from a stationary source is presented to an inserting member and inserted into sheds of warp threads, said device comprising: a. a support means fixed on the loom; b. means defining a pair of disc elements rotatably mounted in said support means to receive the weft therebetween; c. biasing means for continually urging at least one of said disc elements into yielding contact with the other and the weft associated therewith; and d. drive means for rotating said disc elements in a direction to apply tension to the weft in the area intermediate said disc elements and the edge of the fabric being formed.
Claim 2
Dependent Claim
116 words
A weft control device for looms of the shuttleless type wherein weft from a stationary source is presented to an inserting member and inserted into sheds of warp threads, said device comprising: a. a support means fixed on the loom; b. means defining a pair of disc elements rotatably mounted in said support means to receive the weft therebetween; c. biasing means for continually urging at least one of said disc elements into yielding contact with the other and the weft associated therewith; and d. drive means for rotating said disc elements in a direction to apply tension to the weft in the area intermediate said disc elements and the edge of the fabric being formed.
Claim 3
Dependent Claim
31 words
The weft control device according to claim 1 wherein said support means includes an elongated bracket member having a rod member rotatably mounted thereon upon which said disc elements are assembled.
Claim 4
Dependent Claim
39 words
The weft control device according to claim 2 wherein said biasing means includes a coil spring having one end fixed for rotation with said rod member and the opposite end in yieldable contact with one of said disc elements.
Claim 5
Dependent Claim
28 words
The weft control device according to claim 2 wherein said drive means includes a rotatably driven shaft with gear means operatively connecting the latter with said rod member.
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) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |