Bushing for multiple sized and shaped holes in structural member

Details Bushing for multiple sized and shaped holes in structural member Bushing for multiple sized and shaped holes in structural member

1995-07-31

1997-01-21

Sough, Hyung S.

Electricity: conductors and insulators

Insulators

Through wall or plate

174153G, 16 2, H01B 1726, F16L 500

Patent

active

055961770

ABSTRACT:
A self-backing cable bushing for offsetting an electrical conduit passing through a knock out or opening in a structural member. The bushing has face and backing flanges connected by a living hinge. An annular tubular projection with peripheral ramp lugs extends from the face flange. The cable bushing may be installed by locating the face and backing flanges on opposite sides of the knock out and inserting the ramp lugs into the circular hole in the backing. This face retains backing flange in parallel, closely-spaced relation with the surface of offset between them. The bushing may thus be used to protect an electrical conduit from contacting the edges of a variety of knock out shapes.

REFERENCES:
patent: 2912712 (1959-11-01), Shamban et al.
patent: 3562847 (1971-02-01), Jemison
patent: 3887960 (1975-06-01), Sherman
patent: 4262181 (1981-04-01), Tutano et al.
patent: 4520976 (1985-06-01), Couvnoyer et al.
patent: 4869454 (1989-09-01), Byrne et al.

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