US3785175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for inserting weft thread bunches into weft thread storage devices in warp knitting machines
Assignee: Oerlikon Textile GmbH and Co KG
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Filing: 1972-05-15
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Granted: 1974-01-15
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Expires: 1992-05-15
Abstract
Abstract Apparatus for inserting bunches of weft threads into a weft thread storage device in a warp knitting machine includes means for making the weft threads ready, and a weft thread drawing-off device including a suction nozzle displaceable over the width of a fabric web being warp knitted by the machine, and means for actuating the suction nozzle to align the ends of the weft threads made ready by the readying means and to seize the weft thread ends as well as draw off the seized weft threads and insert them into the weft thread storage device.
Inventors
- 👤 H Kamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:59
CPC Classifications
F; F16; F16C; F16C32/00; F16C32/06; F16C32/0629; F16C32/064; F16C32/0644; D; D04; D04B; D04B23/00; D04B23/12
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
118 words
Apparatus for inserting a plurality of weft threads into a weft thread storage device in a warp knitting machine comprising: means for making the weft threads ready, and a weft thread drawing-off device provided with a suction nozzle formed with at least one slot-shaped intake opening, such nozzle being displaceable over the width of a fabric web being warped knitted by the machine and having such opening in cooperative working relationship with a plurality of individually movable thread clamps, and means for actuating said suction nozzle to align the ends of the weft threads to thereby seize the weft thread ends as well as draw-off the seized weft threads and insert them into the weft thread storage device.
Claim 2
Dependent Claim
118 words
Apparatus for inserting a plurality of weft threads into a weft thread storage device in a warp knitting machine comprising: means for making the weft threads ready, and a weft thread drawing-off device provided with a suction nozzle formed with at least one slot-shaped intake opening, such nozzle being displaceable over the width of a fabric web being warped knitted by the machine and having such opening in cooperative working relationship with a plurality of individually movable thread clamps, and means for actuating said suction nozzle to align the ends of the weft threads to thereby seize the weft thread ends as well as draw-off the seized weft threads and insert them into the weft thread storage device.
Claim 3
Dependent Claim
19 words
Apparatus according to claim 1 wherein said suction nozzle is reciprocably displaceable over the width of the fabric web.
Claim 4
Dependent Claim
18 words
Apparatus according to claim 1 wherein said suction nozzle is revolvable over the width of the fabric web.
Claim 5
Dependent Claim
45 words
Apparatus according to claim 1 comprising a profile tube carrying said drawing-off device, said suction nozzle being coupled to said profile tube at a location at which starting ends of the weft threads are presentable, said profile tube being connectible to a suction air source.
Claim 6
Dependent Claim
40 words
Apparatus according to claim 1, wherein said thread clamps are formed in the shape of an angular lever having a pivotable tongue disposed at its lower end to form additional bends at the thread ends for introduction into said nozzle.
Claim 7
Dependent Claim
45 words
Apparatus according to claim 5, wherein contact means are provided at the upper end of said angular lever being responsive to movement of said thread drawing-off device in the thread end direction, for energizing said nozzle to cause alignment and seizure of the thread ends.
References Cited (Backward Citations)
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GB1182580A
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US3603117A
Cited
US3699783A
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US3680332A
Cited
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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) | 1977-01-14 | 1977-07-16 | 1978-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-14 | 1981-07-16 | 1982-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-14 | 1985-07-16 | 1986-01-15 | $7700.00 | Window Closed / Lapsed |