Corrosion resistant hub with elastomeric seal
US5678866A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 8, 1995 |
| Grant date | Oct 21, 1997 |
| Priority date | — |
| Expiry date | Dec 8, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G3/0616
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A corrosion resistant hub with a metal insert and an elastomeric outer shell forms a coupling to join a conduit to an enclosure. The metal insert which serves as a grounding mechanism for the conduit comprises internal threads, located near the conduit receiving end of the insert, to connect the conduit to the hub, and external threads, located at the wire exiting end of the insert to connect the hub to the enclosure. A shell made of semi-rigid elastomeric material is molded onto the outer surface of the metal insert. The shell has an annular flange, a hexagonally shaped torquing section and a collar. The annular radial flange forms a reliable seal of the interface between the insert and the enclosure. The collar has a lip that forms a first seal of the junction between the conduit and the insert and internal threads that engage the conduit to provide a second seal of the junction between the conduit and the insert. The hub also has a bushing which is unitary with the shell via an aperture in the insert. The bushing is molded into the inner surface of the metal insert at the wire exiting end of the insert.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.