Patent ID: 7927099

Claim:
A system for delivering pressurized fluid to a dental hand piece, comprising: a fluid path extending from a source of pressurized fluid to a dental hand piece; an operator controllable device disposed in connection with the fluid path and operable by an operator for controlling delivery of a flow of a pressurized fluid along the fluid path to the hand piece to provide a motive force for driving an operative element thereof; a patient controllable interrupt device disposed in connection with the fluid path and operable by a patient for interrupting the flow of the pressurized fluid along the fluid path from the pressurized fluid source to the hand piece and for venting the pressurized fluid from a portion of the fluid path between the patient interrupt device and the hand piece for reducing the motive force driving the operative element of the hand piece; and a reset device disposed in connection with the fluid path and operable by the operator for allowing the flow of pressurized fluid to resume along the fluid path between the pressurized fluid source and the hand piece.