Spring form captive panel fastener assembly
US4828442A · kind A · utility
Inventor
Key dates
| Filing date | Dec 23, 1987 |
| Grant date | May 9, 1989 |
| Priority date | — |
| Expiry date | Dec 23, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S411/97
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An integral hold out spring and built-in stop ring is provided on a threaded bolt. The bolt is adapted to be inserted through a hole in a panel. The hold out spring and built-in stop ring is inserted into a bore in the bolt, the hold out spring portion extending out of a slot in the bolt and the built-in stop ring portion entering a groove adjacent the nose of the bolt. In one embodiment of the invention, a washer having inwardly extending tabs is installed on the shank of the bolt prior to insertion of the built-in stop ring portion, the tabs riding in grooves extending along the outer body of the bolt and stopped in their downward movement by engagement with the built-in stop ring portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.