Method of making slide-fastener stringers
US3962007A · kind A · utility
33Cited by
2References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 1974 |
| Grant date | Jun 8, 1976 |
| Priority date | — |
| Expiry date | Nov 1, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1039
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Slide-fastener stringers are made by extruding continuous strands of synthetic resin in a form having a plurality of cavities open on one side and defining the coupling head, shank and connecting portion of a multiplicity of coupling members which together form a coupling element adapted to be mounted along the edge of a support tape. An embossing tool is thrust into the connecting members and/or the shanks of the coupling members so as to plastically deform the thermoplastic material and produce humps along the surfaces of the coupling element which are thermally bonded to the support tape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.