Slide fastener and method of making same
US4297770A · kind A · utility
7Cited by
7References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1979 |
| Grant date | Nov 3, 1981 |
| Priority date | — |
| Expiry date | Jul 10, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49782
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A slide fastener comprising a pair of tapes and respective rows of slide-fastener elements individually secured to the tapes. The slide-fastener elements are each bent over an edge of the tape and welded together thermally or ultrasonically. The arms of the fastener elements are formed along their lateral surfaces or sides with grooves of increasing depth toward the respective tape and weft yarns, interwoven with the warp of the tape, are provided along the edge and are disposed in the grooves to provide torsional stability for the individual coupling elements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.