Fastener and method of using same
US3973299A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 20, 1975 |
| Grant date | Aug 10, 1976 |
| Priority date | — |
| Expiry date | Mar 20, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/505
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There are disclosed two embodiments of a fastener, a method of using a fastener, and a fragmentary portion of a mold. The fastener has a socket and a head joined by a flexible filament. The socket has a disc-shaped body, a transverse opening through the body, projections extending into the opening, and a post joined to each projection. The posts extend into the space within a side wall of the opening. The projections flex when the head is inserted through the opening, but the posts prevent attempted withdrawal of the head through the opening thereby preventing uncoupling of the head from the socket. The projections are so close that when the head is inserted into the socket, some of the plastics polymeric material of the projections deforms permanently, thereby work hardening the projections at the deformation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.