Method and apparatus for providing an environmental barrier...

Details Method and apparatus for providing an environmental barrier... Method and apparatus for providing an environmental barrier...

2006-05-09

2006-05-09

Patel, Dhiru R. (Department: 2831)

Electricity: conductors and insulators

Boxes and housings

C174S058000, C174S068300, C174S060000, C220S003800, C439S535000

Reexamination Certificate

active

07041901

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.

REFERENCES:
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patent: 514861 (1992-11-01), None

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