Contact device for the transmission of electric current between

Details Contact device for the transmission of electric current between Contact device for the transmission of electric current between

1978-01-19

1980-01-15

Lake, Roy

Geometrical instruments

308 6B, 339252R, H01R 3900

Patent

active

041835980

ABSTRACT:
In a contact device for the transmission of electric current between a stationary contact and a movable contact wherein the stationary contact has walls at least partially encircling the movable contact, resilient elements transmit the current and are positioned between the movable contact and the walls of the stationary contact. The resilient elements comprise roller contact springs made of a material having sufficient electrical conductivity, elasticity and mechanical strength and are wedged in between the movable contact such that upon movement thereof the contact springs revolve about their center. The springs have a diameter larger than is necessary to span the distance between the movable contact and the walls of the stationary contact, and the roller contact springs are reduced in diameter by twisting or torsioning.

REFERENCES:
patent: 2483419 (1949-10-01), Karmin
patent: 3003827 (1961-10-01), Hentschke
patent: 3259727 (1966-07-01), Casler

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