Patent US3765457A successfully refreshed from Google Patents.
US3765457A
Expired / Lapsed
US
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Method of production of a zipper by weaving
Assignee: William Prym Werke GmbH and Co KG
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Filing: 1971-04-14
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Granted: 1973-10-16
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Expires: 1991-04-14
Abstract
Abstract A method of the production of a slide fastener by weaving, which comprises the steps of bending over a continuous profile strand about a loop forming core within the range of the weaving point for the formation of a row of coupling members, and guiding back and forth the profile strand of synthetic material as a warp thread shedding through the weaving plane. Thereby the profile strand is guided in a cycle, at some points reversing about the loop forming core, and binding the profile strand within the range of the rearward return points by means of at least one woof thread loop.
Inventors
- 👤 F Glindmeyer
- 👤 W Hennenberg
- 👤 K Limpens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:44
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/42; A44B19/52; A44B19/54; A44B19/10; D; D03; D03D; D03D1/00; D10; D10B; D10B2501/00; D10B2501/06; D10B2501/063; D10B2501/0631; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2518; Y10T24/252; Y10T24/2523
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
102 words
A method of production of a slide fastener by weaving, comprising the steps of bending over back and forth a continuous profile strand of synthetic material as a warp thread about a loop forming core within the range of a weaving point for the formation of a row of coupling members, guiding thereby said profile strand in a cycle, at some points reversing about said loop forming core, binding said profile strand within the range of rearward return points by means of at least one woof thread loop, and moving said warp thread laterally within said cycle Additionally to weaving stroke movements.
Claim 2
Independent Claim
102 words
A method of production of a slide fastener by weaving, comprising the steps of bending over back and forth a continuous profile strand of synthetic material as a warp thread about a loop forming core within the range of a weaving point for the formation of a row of coupling members, guiding thereby said profile strand in a cycle, at some points reversing about said loop forming core, binding said profile strand within the range of rearward return points by means of at least one woof thread loop, and moving said warp thread laterally within said cycle Additionally to weaving stroke movements.
Claim 3
Dependent Claim
26 words
The method, as set forth in claim 1, which includes the step of introducing at least one further weft thread extending solely in the band fabric.
Claim 4
Dependent Claim
28 words
The method, as set forth in claim 1, which includes the step of providing deformations in predtermined spacings of waid warp thread within the range of dome faces.
Claim 5
Dependent Claim
28 words
The method, as set forth in claim 1, which includes the step of providing deformations in predetermined spacings of said warp thread within the range of reversing points.
Claim 6
Dependent Claim
38 words
The method, as set forth in claim 1, which includes the step of holding a non-bound part of said loop forming core on one side of the weaving plane during the weaving stroke movements of said warp threads.
Claim 7
Dependent Claim
41 words
The method, as set forth in claim 1, which includes the step of performing of said non-bound part of said loop forming core in its turn synchronous releasing movements within said cycle, in addition to the release of said warp threads.
Claim 8
Dependent Claim
32 words
The method, as set forth in claim 1, which includes the step of lowering said warp threads alternately on one of the sides of said loop forming core below the weaving plane.
References Cited (Backward Citations)
US2973785A
Cited
US3692068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |