Protective device for dentist handpiece

Claim 1

In combination with a dentist's handpiece of the type that includes a handle portion and a generally cylindrical head portion provided perpendicularly to the handle, and wherein the head includes a chuck for receiving a dentist's bit or bur, said bur projecting beyond the head and being rotatable on the axis or centerline of the head, a protective shield for the bit or bur, said shield having a substantially cylindrical shape with an upper annular edge and snugly receiving said head, and said shield having an annular cross section that defines a depending skirt surrounding the bit or bur, said shield fabricated from a plastic material so that said shield is frictionally retained on the head by engagement between the inner cylindrical surface of the shield and the outer cylindrical surface of the head, said shield including a slot upwardly open in said upper annular edge and terminating at a location above a lower edge of said shield, said slot being of such a width as to snugly receive the handle portion of the handpiece, and said slot having an inner end that abuts the handle to define a position for the shield such that the depending skirt surrounding the bit or bur extends beyond the end of the bit or bur.