Electricity: circuit makers and breakers – Combined with or actuated by connector coupling – Plural-position coupling
Patent
1976-01-12
1978-02-14
Smith, Jr., David
Electricity: circuit makers and breakers
Combined with or actuated by connector coupling
Plural-position coupling
339 21R, 339 22B, H01R 1950, H01R 1952
Patent
active
040740927
ABSTRACT:
A safety power track system for carrying light fixtures including a light source includes a generally U-shaped supporting rail, the limbs of which have inwardly bent ends. An internal insulating lining fits into the rail, and has at least a first current conductor embedded therein; a grounding member is connected to the ends of the limbs of the rail, and at least a second current conductor is mounted in, or on an externally inaccessible portion of the lining that faces inwardly of the rail. A transversely mounted, reciprocally movable push-button switch has "on" and "off" positions and is formed with an oblique groove; a presser cam is guided for movement in the groove, and at least two conductors engage the cam in the "on" position. Conductor springs are provided for making contact with the cam, and a conductor fixing screw establishes contact of the spring and the cam. A third conductor is disposed in the interior of the adaptor and connected to one of the contactors, each of the contactors being a generally C-shaped body. The contactors are arranged back-to-back, and an insulating plate surrounds, as well as mutually separates the contactors.
REFERENCES:
patent: 3569899 (1971-03-01), Laser
patent: 3718816 (1973-02-01), Seelbach et al.
patent: 3792413 (1974-02-01), Hyrlainen
patent: 3848715 (1974-11-01), Hesse
patent: 3951488 (1976-04-01), Hesse et al.
Marmorek Ernest F.
Smith Jr. David
Szarvasi Vas-Femipari Szovetkezet
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