Electrical outlet box

Details Electrical outlet box Electrical outlet box

1980-01-10

1982-05-25

Shoap, Allan N.

Electricity: conductors and insulators

Boxes and housings

With electrical device

220 34, 220 37, 220 38, H02G 312

Patent

active

043318320

ABSTRACT:
An electrical outlet floor box including an upright, open top cylindrical housing member, a ball ring, and a cover assembly secured to the open top of the housing member by means of the ball ring; said housing member is embedded in a concrete floor and the upper portion removed in proximity to, and in a plane parallel to, the surface of the concrete. The ball ring insures that the upper surface of the cover assembly is parallel to the surface of the concrete floor even if the axis of the cylindrical housing member deviates somewhat from normality to the surface of the concrete floor.

REFERENCES:
patent: 1928198 (1933-09-01), Buchanan
patent: 2033602 (1936-03-01), Adam
patent: 3027416 (1962-03-01), Kissel
patent: 3081896 (1963-03-01), Hoskins
patent: 3296361 (1967-01-01), Markland
patent: 3343704 (1967-09-01), Terry
patent: 3392228 (1968-07-01), Zerwes
patent: 3912106 (1975-10-01), Traupe
patent: 4163137 (1979-07-01), Close, Jr.

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