# US 4,392,363 A · Slide fastener stringer with vent holes

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- Number: US 4,392,363 A
- Document ID: US4392363A
- Status: Granted
- Kind: A
- Application number: 06/178,309
- Filed: 1980-08-15
- Granted: 1983-07-12
- Earliest claimed: 1979-11-27
- Assignees: Yoshida Kogyo K. K.
- Inventors: Yoshio Matsuda
- Web page: https://patentgrep.com/patent/US4392363A

## CPC

- D04B 21/16: incorporating synthetic threads
- A44B 19/343: {Knitted stringer tapes}
- D10B 2501/0631: Slide fasteners
- D04B: KNITTING
- A44B: BUTTONS, PINS, BUCKLES, SLIDE FASTENERS, OR THE LIKE (fastenings specially adapted for footwear A43C)
- D10B: INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES

## Abstract

A venting slide fastener stringer for use on a cushion, a pillow, etc. has a warp-knit stringer tape including a pair of laterally spaced, elongate webs with a wale-free region therebetween, and a connecting thread or threads having portions laid in opposed marginal wales in the webs and substantially parallel portions extending transversely across the wale-free region to interconnect the webs, thereby providing a plurality of vent holes longitudinally along the wale-free region. The opposed marginal wales are more rigid than other wales in the webs, and the connecting thread or threads are more rigid than foundation threads making up the webs. A row of coupling elements is mounted on one of the webs remotely from the wale-free region.

## Claims

### Claim 1

A venting slide fastener stringer comprising:
(a) a warp-knit stringer tape including a pair of longitudinal warp-knit webs spaced transversely from each other, with a longitudinal wale-free region therebetween, and having a pair of marginal wales, respectively, confronting each other across said wale-free region, and a connecting thread having portions laid only in said marginal wales and substantially parallel adjacent portions all spaced longitudinally of and extending transversely across said wale-free region in a direction substantially perpendicular to said marginal wales, thereby defining a plurality of substantially rectangular vent holes longitudinally along said wale-free region, each of said webs comprising foundation threads constituting a plurality of wales juxtaposed across said each web, said marginal wales being composed of threads that are more rigid than said foundation threads; and
(b) a row of coupling elements mounted on one of said webs remotely from said wale-free region.

### Claim 2 (depends on 1)

A venting slide fastener stringer according to claim 1, said connecting thread being more rigid than said foundation threads.

### Claim 3 (depends on 1)

A venting slide fastener stringer according to claim 1, each of said vent holes having substantially a size ranging from 0.5 mm.times.1 mm to 1 mm.times.2 mm.

### Claim 4 (depends on 1)

A venting slide fastener stringer according to claim 1, each of said vent holes having substantially a size ranging from 0.5 mm.times.0.5 mm to 1 mm .times.1 mm.

### Claim 5

A slide fastener stringer comprising:
(a) a warp-knit stringer tape including a pair of longitudinal warp-knit webs spaced transversely from each other, with a longitudinal wale-free region therebetween, and having a pair of marginal wales, respectively, confronting each other across said wale-free region, and a thread interconnecting said webs and having portions laid only in said marginal wales and substantially parallel adjacent portions all extending transversely across said wale-free region and spaced longitudinally at an equal interval, thereby defining a plurality of substantially rectangular openings longitudinally in and along said wale-free region; and
(b) a row of coupling elements mounted on one of said warp-knit webs remotely from said wale-free region.

### Claim 6 (depends on 1)

A venting slide fastener stringer according to claim 1, including an additional connecting thread extending symmetrically with said first mentioned connecting thread across said wale-free region and having portions laid only in said marginal wales and substantially parallel portions spaced longitudinally of and extending transversely across said wale-free region along said first-mentioned substantially parallel portions, said connecting threads being laid across said wale-free region in patterns of 0-0/1-1/0-0/1-1/0-0/4-4/3-3/4-4/3-3/14-and 4-4/3-3/4 -4/3-3/4/-4/0-0/1-1/0-0/1-10-0, respectively.