US4228566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide fastener stringer
Assignee: YKK Corp
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Filing: 1978-12-26
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Granted: 1980-10-21
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Expires: 1998-12-26
Abstract
Abstract A slide fastener stringer includes a warp-knit stringer tape comprising a first set of yarns forming a knit ground structure containing stitch loops in every course and wale of the tape, and a second set of yarns knit in the ground structure and each extending coursewise across at least one wale, the yarns of second set comprising textured yarns. A third set of yarns forms a plurality of chains of loops knit in the ground structure and extending along wales in at least one edge portion of the tape. A fourth set of yarns is laid in the ground structure and extends in and along the wales in the tape edge portion, on which a row of coupling elements is mounted. With the stringer tape thus constructed, the tape edge portion is tight and resistant to walewise stretch and the remainder portion is relatively coarse and roughened.
Inventors
- 👤 Yoshio Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:22
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/14; D04B21/16; A; A44; A44B; A44B19/00; A44B19/24; A44B19/34; A44B19/343; D10; D10B; D10B2501/00; D10B2501/06; D10B2501/063; D10B2501/0631; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T24/2521
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
196 words
A slide fastener stringer comprising: (a) a warp-knit stringer tape having a pair of spaced edge portions and a central portion extending between said edge portions, said stringer tape comprising: (1) a first set of yarns forming a first knit ground structure containing stitch loops in every course and wale of said tape; (2) a second set of yarns knit in said first ground structure and each extending coursewise across at least one wale, said yarns of the second set comprising textured yarns and forming a second knit ground structure containing stitch loops in every wale of the tape other than said one wale, said central portion consisting of said first set of yarns and said second set of yarns; (3) a third set of yarns forming a plurality of chains of loops knit in said first and second ground structures and extending along wales in at least one of said edge portions; and (4) a fourth set of yarns laid in said first and second ground structures and extending in and along said last-named wales; and (b) a row of coupling elements mounted on and along said one of the edge portions of the tape.
Claim 2
Dependent Claim
196 words
A slide fastener stringer comprising: (a) a warp-knit stringer tape having a pair of spaced edge portions and a central portion extending between said edge portions, said stringer tape comprising: (1) a first set of yarns forming a first knit ground structure containing stitch loops in every course and wale of said tape; (2) a second set of yarns knit in said first ground structure and each extending coursewise across at least one wale, said yarns of the second set comprising textured yarns and forming a second knit ground structure containing stitch loops in every wale of the tape other than said one wale, said central portion consisting of said first set of yarns and said second set of yarns; (3) a third set of yarns forming a plurality of chains of loops knit in said first and second ground structures and extending along wales in at least one of said edge portions; and (4) a fourth set of yarns laid in said first and second ground structures and extending in and along said last-named wales; and (b) a row of coupling elements mounted on and along said one of the edge portions of the tape.
Claim 3
Dependent Claim
31 words
A slide fastener stringer according to claim 1, said first set of yarns being knit in the pattern: 1-2/1-0, and said second set of yarns being knit in the pattern: 0-1/4-3.
Claim 4
Dependent Claim
19 words
A slide fastener stringer according to claim 1, said fourth set of yarns being laid in the pattern: 0-0/1-1.
Claim 5
Dependent Claim
32 words
A slide fastener stringer according to claim 1, including another yarn forming a chain of loops knit in said ground structure and extending along a wale located centrally in said central portion.
Claim 6
Dependent Claim
37 words
A slide fastener stringer according to claim 1, including another yarn laid in said ground structure and extending in and along a wale in said central portion which is next to said one of the edge portions.
Claim 7
Dependent Claim
19 words
A slide fastener stringer according to claim 1, said fourth set of yarns being knit in the pattern: 0-0/0-0/1-1/1-1.
Claim 8
Dependent Claim
19 words
A slide fastener stringer according to claim 1, said fourth set of yarns being knit in the pattern: 0-0/1-1/0-0/2-2/1-1/2-2.
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) | 1983-10-21 | 1984-04-21 | 1984-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-21 | 1988-04-21 | 1988-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-21 | 1992-04-21 | 1992-10-21 | $7700.00 | Window Closed / Lapsed |