Abstract: A device for and method of delivering a therapeutic fluid to the oral cavity of a user. The device includes a source of pressurized therapeutic fluid and a mouthpiece. The mouthpiece has a posterior facing end, and a body having a first surface for enabling the user's lips to seal the oral cavity from an external environment when the mouthpiece is received in the oral cavity. The mouthpiece comprises an inlet passageway and an outlet passageway extending through the body and in fluid communication with the posterior facing end, wherein the inlet passageway delivers a therapeutic fluid under pressure to the oral cavity and the outlet passageway enables egress of the therapeutic fluid from the oral cavity. The device can also include a reservoir for receiving saliva generated by the user that may be recirculated along with the therapeutic fluid to the oral cavity.

Abstract: A device for and method of delivering a therapeutic fluid to the oral cavity of a user. The device includes a source of pressurized therapeutic fluid and a mouthpiece. The mouthpiece has a posterior facing end, and a body having a first surface for enabling the user's lips to seal the oral cavity from an external environment when the mouthpiece is received in the oral cavity. The mouthpiece comprises an inlet passageway and an outlet passageway extending through the body and in fluid communication with the posterior facing end, wherein the inlet passageway delivers a therapeutic fluid under pressure to the oral cavity and the outlet passageway enables egress of the therapeutic fluid from the oral cavity. The device can also include a reservoir for receiving saliva generated by the user that may be recirculated along with the therapeutic fluid to the oral cavity.

Abstract: A valve assembly includes a valve having a head and a stem. The head is configured to seal against a valve seat. The stem has a distal end. A first piston radially extends from the stem of the valve and is enclosed within a housing. A second piston is fixed to the distal end of the stem and seals against the housing. A first chamber is defined by the first piston, second piston and the housing and receives a compressed gas and maintains a desired gas pressure. A spring device is disposed intermediate the first piston and the housing. During normal operation of the engine, the gas pressure within the first chamber seals the head of the valve against the valve seat with the spring device in a compressed arrangement and wherein during periods of insufficient gas pressure the spring device biases the valve to seal against the valve seat.

Abstract: A valve assembly includes a valve having a head and a stem. The head is configured to seal against a valve seat. The stem has a distal end. A first piston radially extends from the stem of the valve and is enclosed within a housing. A second piston is fixed to the distal end of the stem and seals against the housing. A first chamber is defined by the first piston, second piston and the housing and receives a compressed gas and maintains a desired gas pressure. A spring device is disposed intermediate the first piston and the housing. During normal operation of the engine, the gas pressure within the first chamber seals the head of the valve against the valve seat with the spring device in a compressed arrangement and wherein during periods of insufficient gas pressure the spring device biases the valve to seal against the valve seat.

Abstract: A composite fiber reinforced molded structure having a buried precured fabric therein. The precured fabric preventing dimpling when integrally forming a reinforcing member.

Abstract: A composite fiber reinforced propeller and a method of making the propeller using reinforced fiber. The propeller having the fiber wound along the length of the propeller blades and through the hub for strengthening the propeller so light-weight plastic material or the like can be used in the molding of the propeller.