Electrical connectors – Metallic connector or contact having movable or resilient... – Clamping cam or wedge
Patent
1989-06-19
1990-10-02
Desmond, Eugene F.
Electrical connectors
Metallic connector or contact having movable or resilient...
Clamping cam or wedge
439889, H01R 450
Patent
active
049603957
ABSTRACT:
For reliable heavy duty repeatable connection of heavy duty electric power lines of a portable, mobile or temporary nature, involving frequent changes such as extension or relocation, the connector of this invention couples readily in a twist action which locks large area contact surfaces together uniformly and positively to eliminate the risk of accidental uncoupling, degration over time with repeated usage, and general unreliability experienced in non-locking type connectors of known art in this class of service. An uncomplicated rugged configuration, machined from brass, provides mating cone-shaped contact surfaces. A specially located steel pin incorporated into the socket member engages a thread groove in the plug member including a lead-in ledge to clear the pin and guide it into the groove during twist-locking. Inclined plane clamping compensates for any material wear and thus automatically maintains constant contact pressure despite frequent operation in rigorous usage over time, while a wiping effect acting uniformly over the total contact area during each coupling and decoupling preserves the integrity of the contact surfaces; thus this connector achieves excellent overall performance, reliability and life expectancy.
REFERENCES:
patent: 2590789 (1952-03-01), Noyes
patent: 2767384 (1956-10-01), Burke
patent: 3297975 (1967-01-01), Pope
patent: 4212559 (1980-07-01), Persson
patent: 4778413 (1988-10-01), Saarinen
Desmond Eugene F.
Hanchuk Walter G.
McTaggart J. E.
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