Double ball joint

Details Double ball joint Double ball joint

1990-03-05

1991-09-17

Arola, Dave W.

Pipe joints or couplings

Ball and socket

285 93, 285351, F16L 2704

Patent

active

050488732

ABSTRACT:
A ball joint assembly for interconnecting rigid conduits or ducts including spherical ball and socket elements in turn mounted in a housing for universal adjustment. The housing includes spherical segment support surfaces for engaging exterior spherical surfaces defined on the socket element to insure the range of adjustment. A spring member provides electrical continuity between the ball and socket elements comprising a bowed wire of an oblong configuration having an end attached to the ball element and resilient bows engaging the socket and ball elements such that as the elements are angularly displaced, the spring maintains a relatively constant spring load.

REFERENCES:
patent: 1402545 (1922-01-01), Springborn
patent: 3712645 (1973-01-01), Herter

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