Patent US4014083A successfully refreshed from Google Patents.
US4014083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Draw-in gripper assembly for drawing-in warp threads
Assignee: Lindauer Dornier GmbH
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Filing: 1975-08-05
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Granted: 1977-03-29
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Expires: 1995-08-05
Abstract
Abstract A draw-in gripper assembly for drawing warp threads into weaving components including holding means mounted above one another for holding a plurality of warp threads, fed off of a beam, in place, each individual warp thread forming a loop outside of the clamping point of the upper holding means and being held in position by the lower holding means, draw-in gripper means mounted above the lower holding means, slider head means in the gripper means adapted to clamp a warp thread and pull it from the lower holding means during a draw-in stroke of the gripper means, the warp thread, held in a loop in the upper holding means, being released after a short delay, and, due to the length of thread so released, the warp thread is pulled through eye means of a weaving component, and means for releasing the warp thread from the gripper means at the end of the draw-in stroke.
Inventors
- 👤 John Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:41
CPC Classifications
D; D03; D03J; D03J1/00; D03J1/14
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
154 words
A draw-in gripper assembly for drawing warp threads into weaving components comprising holding means mounted above one another for holding in place a plurality of warp threads fed off of a beam, each individual warp thread forming a loop outside of the clamping point of the upper holding means and being held in position by the lower holding means, draw-in gripper means mounted above the lower holding means, slider head means in said gripper means adapted to clamp a warp thread and pull it from said lower holding means during a draw-in stroke of said gripper means, said warp thread held in a loop in said upper holding means being released, after a short delay, and, due to the length of thread so released, said warp thread is pulled through eye means of a weaving component, and means for releasing said warp thread from the gripper means at the end of the draw-in stroke.
Claim 2
Dependent Claim
154 words
A draw-in gripper assembly for drawing warp threads into weaving components comprising holding means mounted above one another for holding in place a plurality of warp threads fed off of a beam, each individual warp thread forming a loop outside of the clamping point of the upper holding means and being held in position by the lower holding means, draw-in gripper means mounted above the lower holding means, slider head means in said gripper means adapted to clamp a warp thread and pull it from said lower holding means during a draw-in stroke of said gripper means, said warp thread held in a loop in said upper holding means being released, after a short delay, and, due to the length of thread so released, said warp thread is pulled through eye means of a weaving component, and means for releasing said warp thread from the gripper means at the end of the draw-in stroke.
Claim 3
Dependent Claim
15 words
A draw-in gripper assembly according to claim 1 in which said weaving components are heddles.
Claim 4
Dependent Claim
23 words
A draw-in gripper assembly according to claim 1 in which said gripper means comprises slider means adapted to slide in a gripper tube.
Claim 5
Dependent Claim
27 words
A draw-in gripper assembly according to claim 3 in which said slider means has an exchangeable slider head means at the end thereof facing a warp thread.
Claim 6
Dependent Claim
36 words
A draw-in gripper assembly according to claim 3 including elastic coupling beam means mounted at the drive end of said assembly in engagement with drive fork means mounted on said slider means and said gripper tube.
Claim 7
Dependent Claim
21 words
A draw-in gripper assembly according to claim 1 including clamping slot means at the end face of said slider head means.
Claim 8
Dependent Claim
41 words
A draw-in gripper assembly according to claim 1 including gripper groove means in said draw-in gripper means at the elevation of said slider head means, said gripper groove means being oblique with respect to the direction of the positioned wrap thread.
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) | 1980-03-28 | 1980-09-27 | 1981-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-28 | 1984-09-27 | 1985-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-28 | 1988-09-27 | 1989-03-29 | $7700.00 | Window Closed / Lapsed |