Electrical lead retainer with compression seal
US4632487A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 13, 1986 |
| Grant date | Dec 30, 1986 |
| Priority date | — |
| Expiry date | Jan 13, 2006 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02B1/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical lead retainer (2) with compression seal (4) is provided for a terminal receptacle post (6) of an ignition coil tower for gasoline engines in corrosive environments, including the high tension lead in marine applications. An insulated electrical wire (16) is inserted into the post, and an annular grommet (20) around the wire is compressed against the post and against the wire to prevent moisture from creeping across the post opening and from creeping along the wire into the post opening. An end cap (22) has an aperture (28) through which the wire extends and has a pair of flexible outer locking tabs (24, 26) engaging the backside of a flange (14) on the post in snap-lock manner to hold the cap on the post and compress the grommet. The cap has an internal annular recess (34) forming a step shoulder (56) with the aperture (28) and compressing the grommet against an annular collar (10) on the post. The internal annular recess (34) has substantially the same diameter as the outer diameter (42) of the grommet to restrict expansion of the outer diameter of the grommet upon compression of the latter by the step shoulder (56) and instead cause expansion of the grommet inwardly…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.