US4372999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stringer tape for slide fasteners
Assignee: YKK Corp
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Filing: 1980-11-03
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Granted: 1983-02-08
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Expires: 2000-11-03
Abstract
Abstract A heat-sealable stringer tape, for slide fasteners, comprising: an elongate fabric woven of warp and weft threads and including a pair of longitudinally extending, spaced first and second marginal portions and an intermediate portion extending between the first and second marginal portions. The warp threads in the intermediate portion include a plurality of thermoplastic filament yarns which are disposed closely to one another at their interlacings with the weft threads. A higher degree of tension has been applied on the weft threads than on the warp threads of the intermediate portion while the fabric is been woven to make the thermoplastic warp yarns project beyond the weft threads.
Inventors
- 👤 Masaharu Satoo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:50
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/34; A44B19/346; D; D03; D03D; D03D15/00; D03D15/40; D03D15/49; D03D15/20; D03D15/283; D03D15/44; D03D15/46; D03D15/50; D03D15/587; D10; D10B; D10B2401/00; D10B2401/04; D10B2401/041; D10B2501/00; D10B2501/06; D10B2501/063; D10B2501/0631; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T24/2521; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/24785; Y10T428/24802; Y10T428/2481; Y10T428/24843; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
176 words
A stringer tape for slide fasteners, comprising: an elongate fabric woven of warp threads and sets of weft threads and including a pair of longitudinally extending, spaced first and second marginal portions and an intermediate portion extending between said first and second marginal portions, said warp threads in said intermediate portion including a plurality of thermoplastic filament yarns and being disposed against one another at their interlacings with said sets of weft threads, each said warp thread in said intermediate portion extending meanderlingly in a plane perpendicular to the general plane of said tape alternately over one of said sets of weft threads and under the next of said sets of weft threads, the topmost and undermost surfaces of said intermediate portion being defined dominantly by said thermoplastic filament yarns projecting beyond said weft threads at both said surfaces, said weft threads including a plurality of textured yarns for absorbing melted thermoplastic material, having been tensioned more highly than said warp threads in said intermediate portion while said fabric is being woven, and extending substantially straight.
Claim 2
Dependent Claim
176 words
A stringer tape for slide fasteners, comprising: an elongate fabric woven of warp threads and sets of weft threads and including a pair of longitudinally extending, spaced first and second marginal portions and an intermediate portion extending between said first and second marginal portions, said warp threads in said intermediate portion including a plurality of thermoplastic filament yarns and being disposed against one another at their interlacings with said sets of weft threads, each said warp thread in said intermediate portion extending meanderlingly in a plane perpendicular to the general plane of said tape alternately over one of said sets of weft threads and under the next of said sets of weft threads, the topmost and undermost surfaces of said intermediate portion being defined dominantly by said thermoplastic filament yarns projecting beyond said weft threads at both said surfaces, said weft threads including a plurality of textured yarns for absorbing melted thermoplastic material, having been tensioned more highly than said warp threads in said intermediate portion while said fabric is being woven, and extending substantially straight.
Claim 3
Dependent Claim
32 words
A stringer tape according to claim 1, said warp threads in said first and second marginal portions including a plurality of textured yarns, whereby the thermoplastic material may also be absorbed thereby.
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) | 1986-02-07 | 1986-08-09 | 1987-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-07 | 1990-08-09 | 1991-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-07 | 1994-08-09 | 1995-02-08 | $7700.00 | Window Closed / Lapsed |