Disposable prophy angle and adapter

Claim 1

A disposable prophy angle permanently assembled from component parts consisting of an integral vertically oriented output gear part, an integral main body part and an integral nose cap part, said main body part and nose cap part being secured together on common mating surfaces thereof after insertion therebetween of said output gear part, and said disposable prophy angle being drivable by the power input gear on one end of a power transmitting adapter removably inserted into said main body part, the other end of said adapter being operatively connectable to a contra angle dental hand piece; said output gear part having a protruding prophy cup receiving button on its bottom end, a laterally extending slinger ring above said button, a lower rotary bearing section above said slinger ring, a driven gear above said lower rotary bearing member, and an upper rotary bearing section above said driven gear; said main body part comprising a horizontal longitudinally extending barrel portion and a nose forming portion on one end matable with said nose cap part; and said nose cap part when mated with said nose forming portion on said common mating surfaces forming together therewith an enclosed nose portion of said disposable prophy angle which houses all of said output gear part above said slinger ring and also said power input gear on said inserted end of a power transmitting adapter, and said enclosed nose portion providing internal stationary bearing formations in which said lower rotary bearing section and said upper rotary bearing section are journaled for rotation, said common mating surfaces being co-planar with a plane longitudinally bisecting said barrel portion of said main body part.