Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Patent
1976-12-20
1979-04-24
Truhe, J. V.
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
285161, 403195, H02G 318, F16H 500
Patent
active
041513630
ABSTRACT:
A plastic, electrically nonconductive threaded stem having a central passage integrally related with a flared series of projections also threaded at their outer surface and including a central opening coincident with the passage in the stem.
A ring nut is threadedly mounted over the projections and is advanced toward the free end of the projections to cause the projections to be compressed together and thereby bringing radially inner clamping surfaces of the projections against confronting surfaces of an electrical conductor which is passed through the central passageway in the stem and the flared projections, and thus clamping the two parts together. The threaded stem, in turn, is passed through a companion opening in the junction box and another nut is received over the stem to the junction box between a shoulder of the stem and the nut and thereby holding firmly the conductor relative to the box. The free end of the conductor is within the interior of the box and suitable electrical connections are made by removing insulation from the conductor within the box.
REFERENCES:
patent: 1131399 (1915-03-01), McGinley
patent: 2600371 (1952-06-01), Bergan
patent: 2927807 (1960-03-01), Campbell
patent: 3659880 (1972-05-01), Goldsobel
Tone D. A.
Truhe J. V.
Young John A.
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