US3866499A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus to make pile fabrics in which pile threads are bonded to a base layer
Assignee: Individual
•
Filing: 1972-03-24
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Granted: 1975-02-18
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Expires: 1992-03-24
Abstract
Abstract A group of plate-like elements, which are hollow between a top and bottom plate are arranged in stacked location, the threads to form the pile fabric being placed adjacent each other between the plate-like elements. A needle-holding web, having needles projecting therefrom is passed intermittently in front of the stacked threads and pressed against the end faces of the threads so that the needles will spear the threads; a knife cuts off the threads, clearing the spearing needles, to transfer the pile threads to the web. The threads between the plates are fed forwardly again by grippers arranged in the hollow between the plate-like elements, the plate-like elements reciprocating back and forth to feed the threads. The web may then be moved to a bonding position at which the cut ends of the pile threads are contacted with a bonding material and, if desired, with a base layer, which is guided over a different path, the then bonded threads being stripped off the needles.
Inventors
- 👤 Jakob Messner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:20
CPC Classifications
D; D04; D04H; D04H11/00; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/936; Y10S83/937; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2183; Y10T83/2192; Y10T83/343; Y10T83/444; Y10T83/463; Y10T83/4635; Y10T83/647; Y10T83/654; Y10T83/6542; Y10T83/658; Y10T83/707; Y10T83/748
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
216 words
Apparatus to make pile fabric in which individual pile threads or fibers are joined to a base layer comprising a needle holding web (12) having projecting needles transverse to the web; means (15) guiding the web to the end faces of the threads with the needles projecting towards the end faces of the threads to spear at least some of the threads on the projecting needles; cutting means (C) severing the threads at a position beyond the insertion depth of the needles; and thread feed means (A) comprising a plurality of spaced, stacked, plate-like elements (2,3) adapted to hold the thread therebetween essentially in parallel alignment and to have the end faces of the threads exposed at the ends of the plates; gripping means (2c, 3c) located on said plate-like elements and movable between a projecting position in which the threads between the plates are engaged, and a retracted position in which the gripping means are out of contact with the threads; and means cyclically moving the plate-like elements transverse to the web (12) and moving the gripping means to grip the thread when the plate-like elements are moved towards the web to feed a pile of threads, and to retract the gripping means when the plate-like elements are retracted in advance of the next feeding
Claim 2
Dependent Claim
216 words
Apparatus to make pile fabric in which individual pile threads or fibers are joined to a base layer comprising a needle holding web (12) having projecting needles transverse to the web; means (15) guiding the web to the end faces of the threads with the needles projecting towards the end faces of the threads to spear at least some of the threads on the projecting needles; cutting means (C) severing the threads at a position beyond the insertion depth of the needles; and thread feed means (A) comprising a plurality of spaced, stacked, plate-like elements (2,3) adapted to hold the thread therebetween essentially in parallel alignment and to have the end faces of the threads exposed at the ends of the plates; gripping means (2c, 3c) located on said plate-like elements and movable between a projecting position in which the threads between the plates are engaged, and a retracted position in which the gripping means are out of contact with the threads; and means cyclically moving the plate-like elements transverse to the web (12) and moving the gripping means to grip the thread when the plate-like elements are moved towards the web to feed a pile of threads, and to retract the gripping means when the plate-like elements are retracted in advance of the next feeding
Claim 3
Dependent Claim
72 words
Apparatus according to claim 1, wherein the plate-like elements are arranged in two similar groups alternately stacked above each other; and carrier elements are provided supporting each group of plate-like elements, said carrier elements moving the plates, alternately, and the gripper means cyclically, to be alternately projecting so that the gripper means of one group will hold the threads while the gripper means of the other group is moving, and vice versa.
Claim 4
Dependent Claim
58 words
Apparatus according to claim 1, wherein each plate-like element comprises a top plate (2a, 3a); a bottom plate (2b, 3b); slots (2d, 3d) formed in said plates, the gripper means (2c, 3c) being extendable through said slot; and a control tongue (2e, 3e) extending between the plates and connected to the respective gripper means to control movement thereof.
Claim 5
Dependent Claim
29 words
Apparatus according to claim 3, further comprising fluid operable means located externally of the plates and connected to said tongues to Move the tongues and hence the gripper means.
Claim 6
Dependent Claim
35 words
Apparatus according to claim 1, comprising a frame (13) which is movable in a direction of movement of said moving means and located to support the ends of the threads extending beyond the plate-like elements.
Claim 7
Dependent Claim
32 words
Apparatus according to claim 5, wherein said frame comprises a rail (27) effecting a compressive force against the top layer of the fibers to compress the fibers during insertion of the needles.
Claim 8
Dependent Claim
24 words
Apparatus according to claim 6, wherein the frame further comprises a counter rail (14) to counter the compressive force of said first rail (27).
Claim 9
Dependent Claim
47 words
Apparatus according to claim 1, wherein the guide means comprises a plate (15) movably transverse to the threads and located behind the needle holding web, the guide plate being moved against the web to press the needles of the web into the end faces of the threads.
Claim 10
Dependent Claim
32 words
Apparatus according to claim 1, wherein the cutting means comprises a band knife, and said band knife and stack of threads are relatively movable transverse to the longitudinal extent of the threads.
References Cited (Backward Citations)
US3289510A
Cited
US3667662A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-02-17 | 1978-08-19 | 1979-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-17 | 1982-08-19 | 1983-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-17 | 1986-08-19 | 1987-02-18 | $7700.00 | Window Closed / Lapsed |