Non-metallic floor box

Details Non-metallic floor box Non-metallic floor box

1997-09-19

2000-08-01

Reichard, Dean A.

Electricity: conductors and insulators

Boxes and housings

Hermetic sealed envelope type

220 34, H02G 312, H02G 314

Patent

active

060969725

ABSTRACT:
One embodiment of a non-metallic floor box for use in electrical in-floor power and communication distribution systems for office buildings and the like includes a closed housing having a base, a top and vertically extending side walls defining an interior volume. The floor box prevents concrete from entering the housing during pouring and setting of the concrete floor, and is adapted to be cut off substantially flush with and parallel to the concrete floor in which it is set. The floor box housing includes gradient markings disposed on at least one of its side walls to indicate the interior volume of the housing and/or the depth of the concrete floor.

REFERENCES:
patent: 1454722 (1923-05-01), Boutin
patent: 2028509 (1936-01-01), Knell
patent: 3343704 (1967-09-01), Terry
patent: 4428492 (1984-01-01), Jorgensen
patent: 4623170 (1986-11-01), Cornwall
patent: 4818822 (1989-04-01), Yahraus
patent: 5257487 (1993-11-01), Bantz et al.
patent: 5360130 (1994-11-01), Lehmann et al.

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