Abstract: An air gun with a quick-release pneumatically operated gas valve that includes a piston positioned in a cylinder with one closed end so that the piston may seat against a gas outlet to close the gas valve. A control reservoir filled with gas to a control pressure is formed in the cylinder between the piston and the closed end of the cylinder so that the control pressure acts against the piston to close the gas valve. Opening a trigger valve allows the gas in the control reservoir to escape through an exhaust port, resulting in the gas valve being rapidly opened.

Abstract: A nozzle for seating a tubeless tire on a rim using pressurized gas includes an outlet, a jet configured to accept pressurized gas and emit a stream of gas through an orifice into a chamber. As the stream of gas enters the chamber, the Venturi effect causes air to enter the chamber through air intake ports and the stream of gas and air from the air intake ports is blown out of the outlet of the nozzle. A system for seating a tubeless tire on a rim includes the nozzle, a tank and a valve configured to control the flow of pressurized gas from the tank to the nozzle. The tire may be seated on the rim by positioning the system so that the air from the nozzle blows into the tire between the bead of the tire and the rim if the valve is opened.

Abstract: A pneumatically operated gas valve includes a piston positioned in a cylinder with one closed end so that the piston may seat against a gas outlet to close the gas valve. A control reservoir may be formed in the cylinder between the piston and the closed end of the cylinder. Means for filling the control reservoir with gas to a control pressure may be provided so that the control pressure acting against the piston may close the gas valve. A release valve may be opened to allow the gas in the control reservoir to escape through an exhaust port to open the gas valve.

Abstract: A nozzle for seating a tubeless tire on a rim using pressurized gas includes an outlet, a jet configured to accept pressurized gas and emit a stream of gas through an orifice into a chamber. As the stream of gas enters the chamber, the Venturi effect causes air to enter the chamber through air intake ports and the stream of gas and air from the air intake ports is blown out of the outlet of the nozzle. A system for seating a tubeless tire on a rim includes the nozzle, a tank and a valve configured to control the flow of pressurized gas from the tank to the nozzle. The tire may be seated on the rim by positioning the system so that the air from the nozzle blows into the tire between the bead of the tire and the rim if the valve is opened.

Abstract: A tool for seating a tubeless tire on a rim using pressurized gas includes a cylindrical pressure vessel with a pistol grip extending radially from the tank. The tool includes a rapid opening gas valve positioned between the cylindrical pressure vessel and a nozzle. In some embodiments the nozzle includes a jet configured to receive pressurized gas from the cylindrical pressure vessel into a chamber of the nozzle so that as the stream of gas enters the chamber, the Venturi effect causes air to enter the chamber through air intake ports and the stream of gas and air from the air intake ports is blown out of the outlet of the nozzle. The tire is seated on the rim by positioning the system so that the air from the nozzle rapidly blows into the tire between the bead of the tire and the rim upon the valve being opened.

Abstract: A tire tool for facilitating the removal of a tire from a wheel rim having multiple radially spaced stud holes. The tire tool comprises a main body portion with two threaded bores at opposite ends of the main body portion. Secured to a first threaded bore of the main body portion is a means for driving the first end of the main body portion in a downward direction. The driving means is adapted to rest on the inner edge of a tire. Secured to the second threaded bore of the main body portion is a means for releasably securing the main body portion to the plurality of stud holes of the rim. The tire removal is accomplished by the downward driving force which causes the bead of the tire to break from the rim of the wheel.