Patent US3796236A successfully refreshed from Google Patents.
US3796236A
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Weft thread inserting means
Assignee: Oerlikon Textile GmbH and Co KG
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Filing: 1972-12-07
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Granted: 1974-03-12
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Expires: 1992-12-07
Abstract
Abstract A device for inserting weft threads in looms having stationary supply spools includes a conduit disposed between the warp threads of the shed and through which the weft threads are passed by on air stream passing through the conduit. A plurality of segments having weft thread egress slots are disposed adjacent one another and sleeves are mounted on the segments for movement parallel to the direction of the weft thread to connect the segments to form the closed conduit.
Inventors
- 👤 H Kamp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 04:24
CPC Classifications
D; D03; D03D; D03D47/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
86 words
Device for inserting weft threads in looms having stationary supply spools wherein the weft threads are carried by an air stream passing through a conduit disposed between the warp threads of the shed, comprising a plurality of segments disposed adjacent to one another and having aligned openings, said segments having means defining a weft thread egress slot, each of said segments having sleeves movably parallel to the direction of the weft thread and which are operable to connect said segments to form a closed through conduit.
Claim 2
Dependent Claim
86 words
Device for inserting weft threads in looms having stationary supply spools wherein the weft threads are carried by an air stream passing through a conduit disposed between the warp threads of the shed, comprising a plurality of segments disposed adjacent to one another and having aligned openings, said segments having means defining a weft thread egress slot, each of said segments having sleeves movably parallel to the direction of the weft thread and which are operable to connect said segments to form a closed through conduit.
Claim 3
Dependent Claim
20 words
Device according to claim 1 wherein said sleeves are operable to close said means defining the weft thread egress slot.
Claim 4
Dependent Claim
49 words
Device according to claim 1 wherein said loom has a main drive shaft, actuating means actuated by said main drive shaft, and complying said sleeve and said actuating means whereby said latter means is operable to effect opening and closing of said means defining the weft thread egress slot.
Claim 5
Dependent Claim
38 words
Device according to claim 3 comprising a gripper shuttle disposed in said conduit, and means supplying said conduit with a stream of suction air or compressed air for transporting said gripper shuttle back and forth within said conduit.
Claim 6
Dependent Claim
49 words
Device according to claim 4 comprising means operably associated with said actuating means for controlling the opening and closing motion of said means defining a weft thread egress slot as a function of the distance travelled by said gripper shuttle in said conduit formed by said segments and sleeves.
Claim 7
Dependent Claim
39 words
Device according to claim 1 wherein said segments are spaced from one another to permit warp threads to pass therebetween, said space being closed when said sleeves are moved to connect said segments to form said closed through conduit.
Claim 8
Dependent Claim
32 words
Device according to claim 1 wherein each of said segments comprises a ring element having a radial opening, and means mounted on said ring element movable circumferentially for closing said radial opening.
Claim 9
Dependent Claim
26 words
Device according to claim 7 wherein said sleeve has a radial opening which is operable to be aligned with said radial opening in said ring element.
Claim 10
Dependent Claim
22 words
Device according to claim 8, wherein circumferential displacement of said sleeve, effects axial displacement of said sleeve relative to said ring element.
Claim 11
Dependent Claim
23 words
Device according to claim 8 wherein means are mounted on said ring element for effecting closure of said radial opening in said sleeve.
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) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |