Fastening element train and method and apparatus of manufacture
US4157603A · kind A · utility
3Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 4, 1975 |
| Grant date | Jun 12, 1979 |
| Priority date | — |
| Expiry date | Jun 4, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/2559
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A plurality of spaced fastener elements are molded onto parallel filaments. A pair of leg portions of each fastening element have, respectively, a projection and an opening, the projection and opening mating to interlock the leg portions. The fastening elements are formed by directing the parallel filaments to a cavity wheel which has mold cavities enclosed by a band, and then injecting plastic material through gate openings in the band into the mold cavities to form a train of fastener elements on the parallel filaments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.