Fastener assembly with sealing grommet
US4975008A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1989 |
| Grant date | Dec 4, 1990 |
| Priority date | — |
| Expiry date | Mar 31, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16B43/001
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A threaded fastener assembly which includes a threaded fastener about which is securely disposed an axially movable washer with a resilient grommet fitted thereover. The threaded fastener assembly is adapted to be preassembled within a first apertured work piece such as, for example, a rocker arm cover which is to be mounted upon a second apertured work piece such as, for example, an engine block. The threaded fastener assembly is retainable within the first apertured work piece while holding the fastener in a freely axially movable configuration which permits the fastener to be moved into an elevated position relative to the washer and grommet so as to prevent the fastener from projecting through the bottom surface of the first work piece, thus preventing interference with other surfaces or the second workpieces, and the structure provides seals for preventing fluid from leaking through the apertures of the workpieces.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.