Patent ID: 6196956
Filing Date: 2001-03-06
Classification: A61H,A63B,Y10S

Abstract:
An apparatus adapter comprising a universal joint, said universal joint further comprising:a. an outer casing,i. an outer surface,ii. an inner surface,iii. a front end andiv. a back end,b. a plurality of ball bearing channels located upon the inner surface of said outer casing,c. a middle ball bearing ring located within said outer casing,d. an inner ball bearing retainer located within said middle ball bearing ring,e. a plurality of first ball bearings, said first ball bearings located within the plurality of ball baring channels,f. a plurality of second ball bearings, said ball bearings located within said ball bearing retainer such that the middle ball bearing ring is allowed to freely move within the outer casing in a spherical movement pattern,g. said apparatus adapter further comprising a means for securing said universal joint to a user extremity for the purpose of exercise or rehabilitation.