Light sources employing universally adjustable ball and socket joints

Claim 1

An auxiliary operating room light comprising: a. a hollow socket having an internal groove about the inner periphery thereof, b. a hollow ball member located within said socket and movable with respect thereto in a plurality of circular positions, c. a light concentrating element including a lens located at a first smaller open end, said light concentrating element including a flared section having a central tapered aperture tapering from a large second open end to said smaller first open end, and having said smaller open end coupled to said ball member with said lens located within said central tapered aperture, said central tapered aperture permitting light rays from said lens to pass therethrough to provide illumination, and d. a beveled ''''O'''' ring seated and positioned in said groove to coact with and engage a peripheral surface of said ball for anyone of said positions, said ''''O'''' ring exerting a frictional force on said ball for maintaining the same in said position due to said beveled edge assuring coaction of said ring with said periphery of said ball including extreme circular positions.