Quarter turn fastener
US6575682B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 16, 2000 |
| Grant date | Jun 10, 2003 |
| Priority date | — |
| Expiry date | Nov 16, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B21/02
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A quarter turn fastener, for securing a plurality of members together, includes a blade member which has upturned corner portions defining sharp points for bitingly engaging the undersurface of the lowermost one of the plurality of members so as to prevent retrograde movement of the quarter turn fastener from the locked state back to the unlocked state. A quarter turn fastener assembly also comprises a stop member for engaging wall portions of another one of the members to be secured together such that rotation of the quarter turn fastener is limited to 90° arcuate extents either from the unlocked state to the locked state or from the locked state to the unlocked state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.