Double quarter turn fastener
US6568893B2 · kind B2 · utility
20Cited by
20References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2001 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Jul 19, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B21/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The apparatus is a double quarter turn fastener which includes a first element with a head, a square seat, and prongs extending from inwardly adjacent to the sides of the seat outwardly so as to terminate in surfaces with hemispherically extending nubs. The double quarter turn fastener further includes a second element which engages the first element by detent elements or by a rotatable snap fit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.