Electrical wiring box arrangement with alignable grounding strap

Electricity: conductors and insulators – Boxes and housings – With grounding means

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339 14R, H02G 308

Patent

active

043920128

ABSTRACT:
Electrical wiring box arrangments comprise a wiring box with a wall structure having a channel for slideably receiving a gripping member for engaging the mounting screw of a wiring device mounted in the box. The gripping member comprises a body having two opposed elements which engage and grip the threads of the mounting screw. Inwardly tapering wall portions of the box wall channel urge the two gripping member elements toward one another as the mounting screw is tightened, insuring a firm grip between the mounting screw and the gripping member.

REFERENCES:
patent: 3119895 (1964-01-01), Palmer
patent: 3210458 (1965-10-01), Palmer
patent: 3609213 (1971-09-01), Winter et al.
patent: 3639884 (1972-02-01), Drapkin
patent: 3784953 (1974-01-01), Lingaraju
patent: 3786399 (1974-01-01), McHattie
patent: 3835438 (1974-09-01), Longworth, Jr.
patent: 3885847 (1975-05-01), Thibeault
patent: 3890026 (1975-06-01), Gartland, Jr.
patent: 3963292 (1976-06-01), Smith
patent: 4203638 (1980-05-01), Tansi
patent: 4306109 (1981-12-01), Nattel
patent: 4315100 (1982-02-01), Haslbeck et al.
Promotional literature, "Self Clamp & Thread" by Highland Mfg. Company Ltd., Burnaby, B. C., Canada.

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