Patent US3714683A successfully refreshed from Google Patents.
US3714683A
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US
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Slide-fastener stringer with stitched-on coupling element
Assignee: Opti Holding AG
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Filing: 1970-10-20
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Granted: 1973-02-06
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Expires: 1990-10-20
Abstract
Abstract A slide-fastener stringer has a pair of warp-knit support tapes with longitudinally running wales separated by valleys. A coupling element is stitched to each tape adjacent the edge thereof with rows of stitching passing through the tape only in the valley adjacent one of the edge wales thereof. In the case of a very fine knit, the stitching lies in the second valley in from the tape edge. The edge wale is reinforced for best holding action by knitting it with a relatively dense or bulky yarn.
Inventors
- 👤 A Frohlich
- 👤 M Cappel
- 👤 E Strubiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:43
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/34; A44B19/343; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T24/2521
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
106 words
A slide-fastener stringer comprising: a pair of interengageable coupling elements; a pair of parallel warp-knit support tapes having longitudinally extending parallel wales including at least one wale defining a band along the edge of said tape separated from the rest of said wales by a valley; respective rows of stitching each engaging over one of said elements and passing through the respective one of said tapes only in its said valley for securing said elements to said tapes; and connecting filament extending between the edge bands of said pair of tapes and tensioned to broaden said valleys, thereby facilitating stitching of said elements to said tapes.
Claim 2
Dependent Claim
106 words
A slide-fastener stringer comprising: a pair of interengageable coupling elements; a pair of parallel warp-knit support tapes having longitudinally extending parallel wales including at least one wale defining a band along the edge of said tape separated from the rest of said wales by a valley; respective rows of stitching each engaging over one of said elements and passing through the respective one of said tapes only in its said valley for securing said elements to said tapes; and connecting filament extending between the edge bands of said pair of tapes and tensioned to broaden said valleys, thereby facilitating stitching of said elements to said tapes.
Claim 3
Dependent Claim
106 words
A slide-fastener stringer comprising: a pair of interengageable coupling elements; a pair of parallel warp-knit support tapes having longitudinally extending parallel wales including at least one wale defining a band along the edge of said tape separated from the rest of said wales by a valley; respective rows of stitching each engaging over one of said elements and passing through the respective one of said tapes only in its said valley for securing said elements to said tapes; and connecting filament extending between the edge bands of said pair of tapes and tensioned to broaden said valleys, thereby facilitating stitching of said elements to said tapes.
Claim 4
Dependent Claim
106 words
A slide-fastener stringer comprising: a pair of interengageable coupling elements; a pair of parallel warp-knit support tapes having longitudinally extending parallel wales including at least one wale defining a band along the edge of said tape separated from the rest of said wales by a valley; respective rows of stitching each engaging over one of said elements and passing through the respective one of said tapes only in its said valley for securing said elements to said tapes; and connecting filament extending between the edge bands of said pair of tapes and tensioned to broaden said valleys, thereby facilitating stitching of said elements to said tapes.
Claim 5
Dependent Claim
23 words
The stringer defined in claim 1 wherein the edge band is formed by a single wale constituted largely from a reinforced warp filament.
Claim 6
Dependent Claim
17 words
The stringer defined in claim 1 wherein the edge band is formed by a pair of wales.
References Cited (Backward Citations)
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Cited
US2433279A
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US2652705A
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US2903775A
Cited
US2959837A
Cited
US3149388A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-06 | 1976-08-07 | 1977-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-06 | 1980-08-07 | 1981-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-06 | 1984-08-07 | 1985-02-06 | $7700.00 | Window Closed / Lapsed |