US3762002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Slide-fastener stringer with knit tape
Assignee: Opti Holding AG
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Filing: 1970-10-20
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Granted: 1973-10-02
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Expires: 1990-10-20
Abstract
Abstract A warp-knit support tape is formed with relatively bulky yarns along at least one of its edges. A coil-type coupling element is laid on the smooth reverse side of the tape and stitches pass between the turns of this coil and through the fabric between the wales thereof so that they fill a valley between wales on the front fabric side. The stitch length is greater than the course width and should be equal to an integral multiple of this width, e.g. twice the course width.
Inventors
- 👤 A Froehlich
- 👤 M Cappel
- 👤 E Stubiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:47
CPC Classifications
D; D04; D04B; D04B21/00; D04B21/14; D04B21/16; A; A44; A44B; A44B19/00; A44B19/24; A44B19/34; A44B19/343; A44B19/42; D04B19/00; 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
192 words
A slide-fastener stringer comprising: a pair of interengageable coupling elements each having a multiplicity of turns; a pair of warp-knit support tapes having wale-forming weft filaments and course-forming weft filaments, said filaments forming longitudinally extending wales as ribs along one side of each tape, said tapes being generally flat along the opposite sides thereof, each of said tapes having an edge wale along the confronting edges of the tapes formed by said filaments with the filaments at said edge wales being of greater bulk than the filaments elsewhere along said tapes threby forming a thickened rib along said edge wale, said ribs defining troughs between them; and a succession of stitches of thread heavier than said warp and weft filaments passing between said turns, said stitches having a stitich length equal substantially to the interturn spacing of the turns of the respective coupling element, said stitches passing through said tapes and securing said elements to the confronting edges of said tapes along said generally flat sides thereof, said stitches having a stitch length greater than the course width and passing through said tapes along a trough between neighboring ribs of each tape.
Claim 2
Dependent Claim
192 words
A slide-fastener stringer comprising: a pair of interengageable coupling elements each having a multiplicity of turns; a pair of warp-knit support tapes having wale-forming weft filaments and course-forming weft filaments, said filaments forming longitudinally extending wales as ribs along one side of each tape, said tapes being generally flat along the opposite sides thereof, each of said tapes having an edge wale along the confronting edges of the tapes formed by said filaments with the filaments at said edge wales being of greater bulk than the filaments elsewhere along said tapes threby forming a thickened rib along said edge wale, said ribs defining troughs between them; and a succession of stitches of thread heavier than said warp and weft filaments passing between said turns, said stitches having a stitich length equal substantially to the interturn spacing of the turns of the respective coupling element, said stitches passing through said tapes and securing said elements to the confronting edges of said tapes along said generally flat sides thereof, said stitches having a stitch length greater than the course width and passing through said tapes along a trough between neighboring ribs of each tape.
Claim 3
Dependent Claim
18 words
The stringer defined in claim 1 wherein said stitch length is an integral multiple of said course width.
Claim 4
Dependent Claim
17 words
The stringer defined in claim 2 whbrein said stitch length is equal to twice said course width.
Claim 5
Dependent Claim
17 words
The stringer defined in claim 3 wherein the weft filaments are laid in in a 4-4/0-0 pattern.
Claim 6
Dependent Claim
18 words
The stringer defined in claim 4 wherein at least some warp filaments are chained in a 0-1/1-0 pattern.
Claim 7
Dependent Claim
16 words
The stringer defined in claim 5 wherein other warp filaments are chained in a 2-0/0-2 pattern.
Claim 8
Dependent Claim
16 words
The stringer defined in claim 4 wherein the warp filmaments are chained in a 2-0/0-2 pattern.
References Cited (Backward Citations)
CA713257A
Cited
US2405902A
Cited
US2433279A
Cited
US2652705A
Cited
US2903775A
Cited
US2959837A
Cited
US3444598A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |