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US4732631A
Expired / Lapsed
US
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Method of manufacturing a tape having a series of surface-type fastener pieces
Assignee: YKK Corp
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Filing: 1986-07-14
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Granted: 1988-03-22
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Expires: 2006-07-14
Abstract
Abstract A tape having a series of surface-type fastener pieces is manufactured by intermittently feeding a surface-type fastener tape blank composed of a release sheet of paper and a surface-type fastener of synthetic resin attached by an adhesive layer to the release sheet and comprising a base strip and a plurality of fastening elements, and fusing the surface-type fastener in a predetermined pattern by ultrasonic or high-frequency welding to produce gaps which define a series of surface-type fastener pieces on the release sheet. The release sheet with the series of surface-type fastener pieces attached thereto by the adhesive layer is then separated from a scrap composed of a surface-type fastener web from which the surface-type fastener pieces have been blanked out. Each of the surface-type fastener pieces is fused along its peripheral edge to prevent the fastening elements thereon from unraveling.
Inventors
- 👤 Kozo Shimizu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:03
CPC Classifications
A; A44; A44B; A44B19/00; A44B19/24; A44B19/34; B; B31; B31D; B31D1/00; B31D1/02; B31D1/021; A44B18/00; A44B18/0069; B31D1/026; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1052; Y10T156/1054; Y10T156/108; Y10T156/12; Y10T156/1313; Y10T24/00; Y10T24/27; Y10T24/275; Y10T24/2758
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
164 words
A method of manufacturing a tape having a series of surface-type fastener pieces, comprising the steps of: intermittently feeding a surface-type fastener tape blank composed of a release sheet of paper and a surface-type fastener of synthetic resin attached by an adhesive layer to the release sheet and comprising a base strip and a plurality of fastening elements; fusing said surface-type fastener in a predetermined pattern and melting the adhesive layer along said pattern and pushing it away from said pattern to produce gaps which define a series of surface-type fastener pieces on said release sheet; pressing the fastening elements along the periphery of each fastener piece against said base strip to fuse said peripheral fastening elements to said base strip; and after the production of the gaps, separating said release sheet with said series of surface-type fastener pieces attached thereto by said adhesive layer from a scrap composed of a surface-type fastener web from which the surface-type fastener pieces have been blanked out.
Claim 2
Independent Claim
164 words
A method of manufacturing a tape having a series of surface-type fastener pieces, comprising the steps of: intermittently feeding a surface-type fastener tape blank composed of a release sheet of paper and a surface-type fastener of synthetic resin attached by an adhesive layer to the release sheet and comprising a base strip and a plurality of fastening elements; fusing said surface-type fastener in a predetermined pattern and melting the adhesive layer along said pattern and pushing it away from said pattern to produce gaps which define a series of surface-type fastener pieces on said release sheet; pressing the fastening elements along the periphery of each fastener piece against said base strip to fuse said peripheral fastening elements to said base strip; and after the production of the gaps, separating said release sheet with said series of surface-type fastener pieces attached thereto by said adhesive layer from a scrap composed of a surface-type fastener web from which the surface-type fastener pieces have been blanked out.
Claim 3
Dependent Claim
15 words
A method according to claim 1, wherein said surface-type fastener is fused by ultrasonic welding.
Claim 4
Dependent Claim
15 words
A method according to claim 1, wherein said surface-type fastener is fused by high-frequency welding.
Claim 5
Dependent Claim
27 words
A method according to claim 1, wherein each of said surface-type fastener pieces is fused along its peripheral edge to prevent the fastening elements thereon from unraveling.
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) | 1991-03-22 | 1991-09-21 | 1992-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-03-22 | 1995-09-21 | 1996-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-03-22 | 1999-09-21 | 2000-03-22 | $7700.00 | Window Closed / Lapsed |