Method and apparatus for providing an environmental barrier between an interior and exterior of an electrical enclosure using a plug and seal
US7041901B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 16, 2005 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Jun 16, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02G3/085
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical fixture is disclosed that has an electrical enclosure, a knockout plug coupled to the electrical enclosure with an interference fit, and a seal coupled to a circumference of the knockout plug between the knockout plug and electrical enclosure so that the seal provides an environmental barrier between an interior and exterior of the electrical enclosure. A method is also disclosed for providing an environmental barrier for a tapered-threaded knockout of an electrical enclosure including placing a seal on a knockout plug and pressing the knockout plug into the tapered-threaded knockout to establish an interference fit between the knockout plug and tapered-threaded knockout. The knockout plug is detachably coupled to the tapered-threaded knockout, with the seal providing an environmental barrier between interior and exterior portions of the electrical enclosure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.