Slide fastener
US4418449A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 16, 1980 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Oct 16, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/2557
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A slide fastener has a pair of tapes along confronting edges of which are provided respective rows of coupling elements in a ladder configuration with individual members being affixed together by a continuous textile strand, as one-arm rungs of the ladder. Each coupling member is molded unitarily and unbent, and comprises an upper portion and a lower portion separated by a plane parallel to a slide fastener plane. The head of each coupling member lies above this plane and is mushroom-shaped to have a neck reaching inwardly toward the respective edge of the tape. Flush with this plane but on the lower half of the coupling member are a pair of ledges which function to absorb forces transverse to this plane. The connecting yarn is embedded in the upper half which can be provided for connection to the tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.