US3596343A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making a slide fastener unit
Assignee: Individual
•
Filing: 1970-06-12
•
Granted: 1971-08-03
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Expires: 1990-06-12
Abstract
Abstract A method of making a slide fastener unit having two rows of links which are secured to the two halves of the supporting tape, each of the halves being a Y-tape with the upper and lower ends of each half partly covering the row of links at each side so that adjacent upper and lower ends form parallel longitudinal bands exposing to view the middle of the rows of links at each side where these rows come together and the individual loops of the rows of links remote from the center. These rows of links are formed by weaving a continuous length of heavy duty thermoplastic synthetic monofilament as a warp into the two short arms of the Y-tape to form loops and links in a single operation. The loops and the links which are initially in the same plane are heat deformed between the free ends of the arms of the Y-tape to form U-shaped links facing towards the edge of the tape while the loops are compression set at the part of the arm remote from the edge to form a guide for the fastener slide.
Inventors
- 👤 Wilhelm Uhrig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:35
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/10; A44B19/12; A44B19/42; A44B19/52; A44B19/54; B; B29; B29D; B29D5/00; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T24/253; Y10T29/00; Y10T29/49; Y10T29/49782; Y10T29/49785; Y10T29/53; Y10T29/53909
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
185 words
A method for manufacturing a fastener slide comprising: assembling two halves of supporting tape and two rows of links, each half of the tape consisting of a Y-tape; weaving a heavy duty, continuous-length, synthetic, thermoplastic filament thread into each tape half to form a warp thread which extends into each of the two short legs of the Y to alternately bind these legs and to expose the middle part of each of the rows of links as parallel longitudinal bands, with the upper and lower arms of each Y-tape remaining covered; and deforming said continuous warp thread under heat and pressure to create a plurality of uniformly spaced medial nips of U-shaped in the rows of links, the U facing towards the edge of the tape with the loops at the parts of the Y-tape arms which are remote from the edge, thereby forming a guide for the fastener slide, said medial nips being located at the top nodal portion of the U-shape with all of the nips in each half of the Y-tape being in alignment longitudinally with the ends of the supporting tape.
Claim 2
Independent Claim
185 words
A method for manufacturing a fastener slide comprising: assembling two halves of supporting tape and two rows of links, each half of the tape consisting of a Y-tape; weaving a heavy duty, continuous-length, synthetic, thermoplastic filament thread into each tape half to form a warp thread which extends into each of the two short legs of the Y to alternately bind these legs and to expose the middle part of each of the rows of links as parallel longitudinal bands, with the upper and lower arms of each Y-tape remaining covered; and deforming said continuous warp thread under heat and pressure to create a plurality of uniformly spaced medial nips of U-shaped in the rows of links, the U facing towards the edge of the tape with the loops at the parts of the Y-tape arms which are remote from the edge, thereby forming a guide for the fastener slide, said medial nips being located at the top nodal portion of the U-shape with all of the nips in each half of the Y-tape being in alignment longitudinally with the ends of the supporting tape.
Claim 3
Dependent Claim
103 words
A method as claimed in claim 1, wherein said synthetic filament is woven alternately into first one and then the other of said short arms of said Y-tape, the synthetic thread moving back and forth, in the form of a wave, in a plane which is perpendicular to the median plane of the Y-tape, whereafter the two short arms are pressed together under the effect of heat to provide a predetermined spacing therebetween, thereby bending the sections of said synthetic warp thread which are secured to said U-shaped links and also bending the sections of synthetic thread which are secured to said loops.
Claim 4
Dependent Claim
36 words
A method as claimed in claim 1, wherein said synthetic filament warp thread which is woven into each of said two tape halves is in the form of a filament having preformed uniformly spaced apart nips.
Claim 5
Dependent Claim
61 words
A method as claimed in claim 1, wherein said synthetic filament warp thread which is woven into each of said two tape halves is first woven in as a smooth filament and is then deformed to produce a plurality of uniformly spaced apart nips by applying a hot wire to the medial portions between heat deformatiOn to create the U-shaped links.
Claim 6
Dependent Claim
61 words
A method as claimed in claim 1, wherein said synthetic filament warp thread which is woven into each of said two tape halves is first woven in as a smooth filament and is then deformed to produce a plurality of uniformly spaced apart nips by applying a hot wire to the medial portions after heat deformation to create the U-shaped links.
Claim 7
Independent Claim
162 words
A method for manufacturing a supporting tape consisting of two tape halves, each half consisting of a Y-tape for mounting a fastener slide comprising: weaving continuously said Y-tape from textile warp and weft threads, wherein a heavy duty, continuous, synthetic thermoplastic, filament thread is disposed as one of the warp threads which lies in the region of the two arms of the Y-tape, said heavy duty filament thread being alternately bound as a warp thread in the two arms to provide a row of parallel sections of the filament thread, said parallel sections lying freely between the two arms to form loops of said heavy duty filament thread, said loops lying at the outer face of the arms; and deforming said row of parallel filament sections under heat and pressure to create a plurality of uniformly spaced U-shaped filament nips, the nips facing towards the edges of the two arms and having deformations defining coupling elements at the apex of each nip.
Claim 8
Independent Claim
162 words
A method for manufacturing a supporting tape consisting of two tape halves, each half consisting of a Y-tape for mounting a fastener slide comprising: weaving continuously said Y-tape from textile warp and weft threads, wherein a heavy duty, continuous, synthetic thermoplastic, filament thread is disposed as one of the warp threads which lies in the region of the two arms of the Y-tape, said heavy duty filament thread being alternately bound as a warp thread in the two arms to provide a row of parallel sections of the filament thread, said parallel sections lying freely between the two arms to form loops of said heavy duty filament thread, said loops lying at the outer face of the arms; and deforming said row of parallel filament sections under heat and pressure to create a plurality of uniformly spaced U-shaped filament nips, the nips facing towards the edges of the two arms and having deformations defining coupling elements at the apex of each nip.
References Cited (Backward Citations)
US3229362A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |