US3710598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of knitting a pile fabric on a warp knitting machine
Assignee: Individual
•
Filing: 1971-01-21
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Granted: 1973-01-16
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Expires: 1991-01-21
Abstract
Abstract A pile fabric is produced on a Raschel knitting machine having one needle bed and three guide bars and swinging the guide bars back and forth twice during the knitting of each course by knitting a ground fabric from the threads of two guide bars and by clamping two portions of each pile thread of the third bar to each knitting needle by means of respective threads from the two guide bars guiding the threads for the ground fabric. Pile loops are formed from the pile thread portion between the clamping and the knock over edge of the trick plate. Different types of ground fabric may be used, and the pile threads may be secured to the ground fabric with or without the use of a fall plate.
Inventors
- 👤 C Wilkens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:38
CPC Classifications
D; D04; D04B; D04B23/00; D04B23/08; D04B21/00; D04B21/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
170 words
A method of knitting a pile fabric on a warp knitting machine having at least one needle bar and three threaded guide bars, and equipped with a guide bar mechanism swinging the guide bars back and forth twice during the knitting of each course which comprises: a. knitting threads guided by a first guide bar and a second guide bar into a ground fabric by swinging the guide bars back and forth twice in each course; and b. forming pile loops of threads by clamping during knitting of the ground fabric at two spaced points to the same knitting needle of each thread guided by the third guide bar, said clamping being by threads respectively guided by the first and second guide bars, the overlap of the warp thread being always opposite the following overlap of thread and the underlap of the pile thread always being in the same direction to the following overlap thread, whereby the threads of said third guide bar form pile loops in the knitted fabric.
Claim 2
Independent Claim
170 words
A method of knitting a pile fabric on a warp knitting machine having at least one needle bar and three threaded guide bars, and equipped with a guide bar mechanism swinging the guide bars back and forth twice during the knitting of each course which comprises: a. knitting threads guided by a first guide bar and a second guide bar into a ground fabric by swinging the guide bars back and forth twice in each course; and b. forming pile loops of threads by clamping during knitting of the ground fabric at two spaced points to the same knitting needle of each thread guided by the third guide bar, said clamping being by threads respectively guided by the first and second guide bars, the overlap of the warp thread being always opposite the following overlap of thread and the underlap of the pile thread always being in the same direction to the following overlap thread, whereby the threads of said third guide bar form pile loops in the knitted fabric.
Claim 3
Dependent Claim
47 words
A method as set forth in claim 1, wherein the threads of said first guide bar are formed into pillar stitches on said knitting needles during said knitting, and the stitches of said second guide bar are laid-in into said pillar stitches to form said ground fabric.
Claim 4
Dependent Claim
47 words
A method as set forth in claim 2, wherein the threads of said third guide bar are laid-in into said ground fabric, said first guide bar being arranged in front of said second guide bar, and said third guide bar in back of said second guide bar.
Claim 5
Dependent Claim
98 words
A method as set forth in claim 3, said knitting machine being equipped with a fall plate, said second guide bar making an overlap after the first backward swing of said guide bars, and said overlap being depressed by said fall plate to the shank of each knitting needle, the third guide bar makes an underlap after the first forward swing of said guide bars, said first guide bar makes an overlap after the second backward swing of said guide bars, and said second guide bar makes an underlap after the second forward swing of the guide bars.
Claim 6
Dependent Claim
51 words
A method as set forth in claim 2, wherein knitting threads are guided by said third guide bar, said clamping by thread guided by the first guide bar from behind the third guide bar, and said clamping by thread guided by the second guide bar from behind the first guide bar.
Claim 7
Dependent Claim
81 words
A method as set forth in claim 1, wherein said third guide bar makes an overlap after the first backward swing of the guide bars and an underlap in a direction opposite to the direction of said overlap after the first forward swing of the guide bars, said first guide bar makes an overlap after the second backward swing of said guide bars, and said third and second guide bars make underlaps after the second forward swing of said guide bars.
Claim 8
Dependent Claim
67 words
A method as set forth in claim 2, wherein during knitting, fall plate means descends and depresses overlap threads, and wherein knitting threads are guided by said third guide bar, said clamping by thread guided by the first guide bar received from in front of the third guide bar, and said clamping by thread guided by the second guide bar received from behind the third guide bar.
Claim 9
Dependent Claim
87 words
A method as set forth In claim 2, wherein said third guide bar makes an overlap after the first backward swing of said guide bars, said overlap is depressed to the needle shafts by said fall plate, said third guide bar makes an underlap after the first forward swing of said guide bars, said first guide bar makes an overlap after the second backward swing of said guide bars, and the second and third guide bars make underlaps after the second forward swing of the guide bars.
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) | 1976-01-16 | 1976-07-17 | 1977-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-16 | 1980-07-17 | 1981-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-16 | 1984-07-17 | 1985-01-16 | $7700.00 | Window Closed / Lapsed |