US3769816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corduroy and process for producing corduroy
Assignee: FORSCHUNGSINSTITUT fur TEXTILTECHNOLOGIE DL
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Filing: 1971-12-16
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Granted: 1973-11-06
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Expires: 1991-12-16
Abstract
Abstract Corduroy or the like, wherein the pile tufts are arranged on a base web and are doubly bound into chain-stitch seams, each one of the two free legs of the pile tufts are bound to the base web by a respective wale of the chain-stitch seam, and the foot portion of each pile tuft, interconnecting the two free legs thereof, is arranged in the direction of the chain-stitch seam.
Inventors
- 👤 H Gerischer
- 👤 S Hennig
- 👤 S Ploch
- 👤 P Zeisberg
- 👤 M Linack
- 👤 K Klinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:32
CPC Classifications
D; D04; D04B; D04B23/00; D04B23/08; D04B21/00; D04B21/02; D04B21/14; D04B21/16; D04B21/165
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
158 words
Corduroy wherein the pile tufts are arranged on a base web and are bound into chain-stitch seams, which comprises: a. pile tufts each having a first free leg and a second free leg, b. a first wale of the chain-stitch seam formed before the stitch insertion point binding the first free leg of a pile tuft to the base web, c. a second wale of the chain-stitch seam formed after the stitch insertion point binding the second free leg of a pile tuft to the base web, d. a foot portion of each of said pile tufts interconnecting the first and second free legs thereof and arranged in the direction of the chain-stitch seam, and e. a cord rib formed between and parallel to adjacent chainstitch seams by the free legs of the pile tufts bound into adjacent chain-stitch seams, the free legs in each adjacent chain-stitch seam being inclined toward the legs in the other chain-stitch seam.
Claim 2
Dependent Claim
158 words
Corduroy wherein the pile tufts are arranged on a base web and are bound into chain-stitch seams, which comprises: a. pile tufts each having a first free leg and a second free leg, b. a first wale of the chain-stitch seam formed before the stitch insertion point binding the first free leg of a pile tuft to the base web, c. a second wale of the chain-stitch seam formed after the stitch insertion point binding the second free leg of a pile tuft to the base web, d. a foot portion of each of said pile tufts interconnecting the first and second free legs thereof and arranged in the direction of the chain-stitch seam, and e. a cord rib formed between and parallel to adjacent chainstitch seams by the free legs of the pile tufts bound into adjacent chain-stitch seams, the free legs in each adjacent chain-stitch seam being inclined toward the legs in the other chain-stitch seam.
Claim 3
Dependent Claim
21 words
Corduroy as defined in claim 1 wherein the pile tufts are formed at every stitch insertion point of the chain-stitch seams.
Claim 4
Dependent Claim
22 words
Corduroy as defined in claim 1 wherein the pile tufts are formed at every other stitch insertion point of the chain-stitch seams.
Claim 5
Dependent Claim
22 words
Corduroy as defined in claim 1 wherein the pile tufts are formed at every fourth stitch insertion point of the chain-stitch seam.
Claim 6
Dependent Claim
23 words
Corduroy as defined in claim 1 wherein cord ribs are formed in every second of the longitudinal rows formed between the chain-stitch seams.
Claim 7
Dependent Claim
112 words
A process for producing corduroy which comprises binding into adjacent chain-stitch seams stitched into a base web a pile thread staggered from stitch insertion point to stitch insertion point, and cutting the pile thread in the center between these chain-stitch seams to form the pile tufts whereby each of the pile tufts has a first free leg and a second free leg interconnected by a foot portion, the foot portion is arranged in the direction of the chain-stitch seams and the free legs in each adjacent chain-stitch seam are inclined toward the free legs in the other chain stitch seam to form a cord rib between and parallel to adjacent chain-stitch seams.
Claim 8
Dependent Claim
112 words
A process for producing corduroy which comprises binding into adjacent chain-stitch seams stitched into a base web a pile thread staggered from stitch insertion point to stitch insertion point, and cutting the pile thread in the center between these chain-stitch seams to form the pile tufts whereby each of the pile tufts has a first free leg and a second free leg interconnected by a foot portion, the foot portion is arranged in the direction of the chain-stitch seams and the free legs in each adjacent chain-stitch seam are inclined toward the free legs in the other chain stitch seam to form a cord rib between and parallel to adjacent chain-stitch seams.
Claim 9
Dependent Claim
143 words
A process for producing corduroy which comprises binding into adjacent chain-stitch seams stitched into a base web a first pile thread staggered from stitch insertion point to stitch insertion point, binding into the adjacent chain-stitch seams a second pile thread staggered from stitch insertion point to stitch insertion point and staggered in relation to the first pile thread, and cutting the first and second pile threads in the center between these chain-stitch seams to form pile tufts whereby each of the pile tufts has a first free leg and a second free leg interconnected by a foot portion, the foot portion is arranged in the direction of the chain-stitch seams and the free legs in each adjacent chain-stitch seam are inclined toward the free legs in the other chain stitch seam to form a cord rib between and parallel to adjacent chain-stitch seams.
Claim 10
Dependent Claim
143 words
A process for producing corduroy which comprises binding into adjacent chain-stitch seams stitched into a base web a first pile thread staggered from stitch insertion point to stitch insertion point, binding into the adjacent chain-stitch seams a second pile thread staggered from stitch insertion point to stitch insertion point and staggered in relation to the first pile thread, and cutting the first and second pile threads in the center between these chain-stitch seams to form pile tufts whereby each of the pile tufts has a first free leg and a second free leg interconnected by a foot portion, the foot portion is arranged in the direction of the chain-stitch seams and the free legs in each adjacent chain-stitch seam are inclined toward the free legs in the other chain stitch seam to form a cord rib between and parallel to adjacent chain-stitch seams.
Claim 11
Dependent Claim
26 words
The process for producing corduroy as defined in claim 6 which further comprises Arranging pile sinkers between the adjacent chain-stitch seams and beneath the pile thread.
Claim 12
Dependent Claim
26 words
The process for producing corduroy as defined in claim 7 which further comprises arranging pile sinkers between the adjacent chain-stitch seams and beneath the pile threads.
References Cited (Backward Citations)
US1827614A
Cited
US2476153A
Cited
US2959947A
Cited
US3058326A
Cited
GB1046236A
Cited
US3327501A
Cited
US3597941A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |