US3864946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warp-knitted fastener tapes
Assignee: YKK Corp
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Filing: 1973-12-26
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Granted: 1975-02-11
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Expires: 1993-12-26
Abstract
Abstract A warp-knitted tape for slide fasteners is provided with a reinforcing core or core extending between two adjacent wales longitudinally along the inner edge of the tape. The core or cores are stabilized in position by means of tension applied by at least two fastening threads laid in coursewise from opposite directions, one of which fastening threads is arranged to overlie the core and the other to underlie the core, thereby preventing the core from displacement relative to the tape.
Inventors
- 👤 Yoshio Matsuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:56
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/34; A44B19/343
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
98 words
A supporting stringer tape for slide fasteners which comprises a warp-knitted structure comprising wales of longitudinally extending warp stitches connected coursewise by transversely extending weft threads, a reinforcing core inserted between two adjacent wales at the longitudinal inner edge portion of the tape along which a row of fastener elements is secured, and a first fastening weft thread laid in from one direction to overlie said reinforcing core and a second fastening weft thread laid in from the opposite direction to underlie said reinforcing core, said first and second fastening threads interconnecting at least said two adjacent wales.
Claim 2
Dependent Claim
98 words
A supporting stringer tape for slide fasteners which comprises a warp-knitted structure comprising wales of longitudinally extending warp stitches connected coursewise by transversely extending weft threads, a reinforcing core inserted between two adjacent wales at the longitudinal inner edge portion of the tape along which a row of fastener elements is secured, and a first fastening weft thread laid in from one direction to overlie said reinforcing core and a second fastening weft thread laid in from the opposite direction to underlie said reinforcing core, said first and second fastening threads interconnecting at least said two adjacent wales.
Claim 3
Dependent Claim
35 words
The supporting stringer tape as defined in claim 1 wherein said transversely extending weft threads at the longitudinal inner edge portion of the tape are arranged to pass alternately over and under said reinforcing core.
Claim 4
Dependent Claim
30 words
The supporting stringer tape as defined in claim 1 wherein said first and second fastening threads have their respective turns spaced one from another longitudinally along said two adjacent wales.
Claim 5
Dependent Claim
26 words
The supporting stringer tape as defined in claim 1 wherein said first and second fastening threads are thicker and stronger than said transversely extending weft threads.
Claim 6
Dependent Claim
150 words
A supporting stringer tape for slide fasteners which comprises a warp-knitted structure comprising wales of longitudinally extending warp stitches connected coursewise by transversely extending weft threads, two reinforcing cores superimposed one upon the other with respect to the place of the tape and inserted between two adjacent wales at the longitudinal inner edge portion of the tape along which a row of the fastener elements is secured, and a first fastening weft thread laid in from one direction to overlie the upper one of said two reinforcing cores and a second fastening weft thread laid in from the opposite direction to underlie the lower one of said cores, said first and second fastening threads having their respective turns spaced one from another longitudinally along said two adjacent wales, and said transversely extending weft threads at the longitudinal inner edge portion of the tape passing between said upper and lower cores.
Claim 7
Dependent Claim
150 words
A supporting stringer tape for slide fasteners which comprises a warp-knitted structure comprising wales of longitudinally extending warp stitches connected coursewise by transversely extending weft threads, two reinforcing cores superimposed one upon the other with respect to the place of the tape and inserted between two adjacent wales at the longitudinal inner edge portion of the tape along which a row of the fastener elements is secured, and a first fastening weft thread laid in from one direction to overlie the upper one of said two reinforcing cores and a second fastening weft thread laid in from the opposite direction to underlie the lower one of said cores, said first and second fastening threads having their respective turns spaced one from another longitudinally along said two adjacent wales, and said transversely extending weft threads at the longitudinal inner edge portion of the tape passing between said upper and lower cores.
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) | 1978-02-10 | 1978-08-12 | 1979-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-10 | 1982-08-12 | 1983-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-10 | 1986-08-12 | 1987-02-11 | $7700.00 | Window Closed / Lapsed |