Patent ID: 6390927
Filing Date: 2002-05-21
Classification: B25B,F16D,Y10T

Abstract:
A universal joint device for a socket wrench, comprising:a handle portion having a forked end member and a non-slip spring retaining surface extending at least partially around the periphery surface of said handle portion; a socket portion having a forked end member and a non-slip spring retaining surface extending at least partially around the periphery surface of said socket portion; an intermediate swivel block; means for proving a first pivotal connection of said forked end member of said handle portion to said handle swivel block, and means for providing a second pivotal connection of the forked end member of said socket portion to said swivel block, such that the axes of said first and second pivotal connections are at substantially right angles to each other; and a spring concentric with and encircling said swivel block, said spring mounted to said handle and socket portions on said non-slip spring retaining surfaces, wherein each said non-slip spring retaining surface is a tapered surface, said tapered surface each narrowing gradually away from each other and wherein at least one of said tapered surfaces has an axial length greater than a maximum cross-sectional dimension of an end coil of said spring.