Locking fastener
US4906150A · kind A · utility
Inventor
Key dates
| Filing date | Mar 7, 1988 |
| Grant date | Mar 6, 1990 |
| Priority date | — |
| Expiry date | Mar 7, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S411/985
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Locking fastener comprising a threaded part such as a bolt or nut and a lock plate which fits over the bolt or nut and is prevented from rotation by engagement with a stationary object such as a protrusion on the part to be secured. The lock plate has an opening with a contour which mates with the outer contour of the threaded part to prevent rotation of the threaded part, and the plate is retained on the threaded part by a retainer received in a detent opening or groove formed in the threaded part. In some embodiments, the retainer is a separate part which is free to rotate in the groove. In other embodiments, the retainer comprises a detent lug carried by the lock plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.