Meter box clamp

Details Meter box clamp Meter box clamp

2006-05-16

2006-05-16

Vu, Hien (Department: 2833)

Electrical connectors

With circuit conductors and safety grounding provision

C439S097000, C439S433000

Reexamination Certificate

active

07044754

ABSTRACT:
An adjustable clamping device provides means for attaching a grounding wire to a metal boxes and in particular metal boxes coated with a thin layer of paint or other nonconductive material. An adjustable C-shaped clamp is provided with a grounding block between the wall of the meter box and the C-shaped clamp. The grounding block is formed with a plurality of abrading tips that extend from the block into engagement with the wall. A screw threaded through the clamp engages and exerts pressure on the grounding block towards the metal meter wall with abrading tips extending from the block into pressured contact with the wall. Means are provided for moving the grounding block and abrading tips parallel to the wall while the tips are maintained in pressure engagement with the wall whereby the tips abrade the wall as they move parallel thereto.

REFERENCES:
patent: 4780096 (1988-10-01), Franks, Jr.
patent: 4828504 (1989-05-01), Franks, Jr.
patent: 4904193 (1990-02-01), Graves
patent: 4993960 (1991-02-01), Franks, Jr.
patent: 5006074 (1991-04-01), Franks, Jr.
patent: 5114354 (1992-05-01), Franks, Jr.
patent: 5746609 (1998-05-01), Franks, Jr.
patent: 2004/0106309 (2004-06-01), Larsson et al.

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