Patent US4291440A successfully refreshed from Google Patents.
US4291440A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded coupling element assembly
Assignee: YKK Corp
•
Filing: 1979-05-22
•
Granted: 1981-09-29
•
Expires: 1999-05-22
Abstract
Abstract A coupling element assembly for slide fasteners includes a row of laterally spaced coupling elements made of synthetic resin. A pair of warp-knit elongate webs extend transversely of the coupling elements and are embedded respectively in a pair of leg portions of each coupling element to interconnect the coupling elements. Each of the warp-knit webs comprises at least one first thread forming a wale of chain stitches and a second thread interlaced or interknitted with the first thread. The warp-knit webs have roughened surfaces having interstices into which material of the coupling elements enters for secure anchorage of the coupling elements. At least one third thread may be interlaced or interknitted with the first threads and has portions spaced longitudinally of the first threads and embedded longitudinally in the coupling elements.
Inventors
- 👤 Hiroshi Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:08
CPC Classifications
B; B29; B29D; B29D5/00; A; A44; A44B; A44B19/00; A44B19/10; A44B19/14; A44B19/24; A44B19/34; A44B19/343; A44B19/40; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/47; B29C66/474; B29C66/70; B29C66/72; B29C66/729; D; D04; D04B; D04B21/00; D04B21/10; B29C65/00; B29C65/02; B29C65/08; B29C65/081; B29C66/41; B29C66/43; B29C66/431; B29C66/73; B29C66/731; B29C66/7316; B29C66/73161; B29L; B29L2005/00; D10; D10B; D10B2501/00; D10B2501/06; D10B2501/063; D10B2501/0631; Y; Y10; Y10T; Y10T24/00; Y10T24/25; Y10T24/2539; Y10T24/2548
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
166 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches, a third thread interlaced with the first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 2
Dependent Claim
166 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches, a third thread interlaced with the first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 3
Dependent Claim
191 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches, a pair of third threads symmetrically interlaced with a selected one of the first threads in each of said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 4
Dependent Claim
191 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches, a pair of third threads symmetrically interlaced with a selected one of the first threads in each of said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 5
Dependent Claim
187 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches, a pair of sets of third threads symmetrically interlaced with said first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 6
Dependent Claim
187 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches, a pair of sets of third threads symmetrically interlaced with said first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 7
Dependent Claim
182 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches, a pair of third thread knitted with said first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 8
Dependent Claim
182 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches, a pair of third thread knitted with said first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 9
Dependent Claim
163 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, a pair of third threads symmetrically interlaced with the first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 10
Dependent Claim
163 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, a pair of third threads symmetrically interlaced with the first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 11
Dependent Claim
160 words
A coupling element assembly for slide fasteners comprising: A row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, a third thread interlaced with the first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.--
Claim 12
Dependent Claim
160 words
A coupling element assembly for slide fasteners comprising: A row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, a third thread interlaced with the first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.--
Claim 13
Dependent Claim
33 words
A coupling element assembly for slide fasteners according to claim 6, each of said warp-knit elongate webs incuding a pair of first threads forming a pair of laterally spaced wales of chain stitches.
Claim 14
Dependent Claim
22 words
A coupling element assembly for slide fasteners according to claim 6 or 7, and said third thread having a pattern of 6--6/5--5/6--6/0--0/1--1/0--0.
Claim 15
Dependent Claim
22 words
A coupling element assembly for slide fasteners according to claim 6 or 7, and said third thread having a pattern of 5--5/0--0.
Claim 16
Dependent Claim
169 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, a pair of third threads symmetrically interlaced with a selected one of the first threads of each of said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 17
Dependent Claim
169 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, a pair of third threads symmetrically interlaced with a selected one of the first threads of each of said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 18
Dependent Claim
34 words
A coupling element assembly for slide fasteners according to claim 10, and each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches.
Claim 19
Dependent Claim
25 words
A coupling element assembly for slide fasteners according to claim 10 or 11, said pair of third threads comprising opposite patterns of 4--4/3--3/4--4/0--0/1--1/0--0 and 0--0/1--1/0--0/4--4/3--3/4--4.
Claim 20
Dependent Claim
26 words
A coupling element assembly for slide fasteners according to claim 10 or 11 and said pair of third threads comprising opposite patterns of 0--0/6--6/6--6/0--0 and 6--6/0--0/0--0/6--6.
Claim 21
Dependent Claim
188 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches, a pair of sets of third threads symmetrically interlaced with said first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, and said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 22
Dependent Claim
188 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches, a pair of sets of third threads symmetrically interlaced with said first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, and said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 23
Dependent Claim
26 words
A coupling element assembly for slide fasteners according to claim 14, and said pair of sets of third threads comprising opposite patterns of 0--0/1--1/0--0/5--5/4--4/5--5 and 5--5/4--4/5--5/0--0/1--1/0--0.
Claim 24
Dependent Claim
161 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinal along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, a pair of third threads knitted with said first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 25
Dependent Claim
161 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinal along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, a pair of third threads knitted with said first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 26
Dependent Claim
34 words
A coupling element assembly for slide fasteners according to claim 16, and each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches.
Claim 27
Dependent Claim
187 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches, a pair of sets of third threads symmetrically interlaced with said first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 28
Dependent Claim
187 words
A coupling element assembly for slide fasteners comprising: a row of laterally spaced coupling elements each having a head portion and a pair of leg portions extending from said head portion; and a pair of warp-knit elongate webs each including at least one first thread forming a wale of chain stitches and a second thread disposed in and extending longitudinally along said wale of chain stitches, each of said warp-knit elongate webs extending transversely of said spaced coupling elements and having a longitudinal portion embedded in respective leg portions of said coupling elements to interconnect the coupling elements, each of said warp-knit elongate webs including a pair of first threads forming a pair of laterally spaced wales of chain stitches, a pair of sets of third threads symmetrically interlaced with said first threads in said warp-knit elongate webs and having a plurality of parallel portions spaced longitudinally on said first threads and extending transversely of said wales, said parallel spaced portions being embedded in said coupling elements extending longitudinally along said coupling elements, and said parallel spaced portions extending substantially the full length of said coupling elements.
Claim 29
Dependent Claim
33 words
A coupling element assembly for slide fasteners according to claim 18, and including a pair of core threads each extending longitudinally between the pair of wales in one of said warp-knit elongate webs.
References Cited (Backward Citations)
US3179996A
Cited
NL6703533A
Cited
US3414948A
Cited
NL6804649A
Cited
US3964137A
Cited
US4033014A
Cited
US4075874A
Cited
US4123830A
Cited
US4080691A
Cited
US4140157A
Cited
US4171556A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-09-28 | 1985-03-30 | 1985-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-28 | 1989-03-30 | 1989-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-28 | 1993-03-30 | 1993-09-29 | $7700.00 | Window Closed / Lapsed |