Rotatable electrical coupling

Details Rotatable electrical coupling Rotatable electrical coupling

1984-03-12

1985-12-10

Desmond, Eugene F.

Geometrical instruments

339182R, H01R 3908

Patent

active

045575363

ABSTRACT:
A rotatable electrical coupling comprises a cylindrical housing enclosing two resilient contact members and having a circumferential groove formed in its inner surface. A cable holder has two slip rings respectively cooperating with the two contact members, the slip rings being formed as coaxial cylindrical conductors of different diameters. A connection cable is embedded in the cable holder and has two conducting cores respectively electrically connected to the two slip rings. A hollow substantially cylindrical insulating body electrically separates the two slip rings from each other and includes a disk-shaped member at its end facing the interior of the housing. This disk-shaped member has a diameter greater than the diameter of the larger slip ring and is rotatably journaled in the circumferential groove formed in the housing, an extended leakage path between the two slip rings being thereby provided by the disk-shaped member. The larger slip ring is secured to the outer surface of the insulating body, and the smaller slip ring to the interior of the insulating body.

REFERENCES:
patent: 4040696 (1977-08-01), Wada et al.

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