Patent ID: 6997522

Claim:
A valve assembly for an air pressure system, comprising: an inlet valve including an inlet port, an outlet port and a control port, the inlet port communicating with the outlet port when the control port is above a threshold pressure; a first control valve including an inlet port, an outlet port, an exhaust port, and a control member, the first control valve inlet port being in communication with the inlet valve outlet port, the first control valve outlet port communicating with one of the first control valve inlet port and the first control valve exhaust port as a function of a position of the first control valve control member; and a second control valve including an inlet port, an outlet port, an exhaust port, and a control member, the second control valve inlet port being in communication with the inlet valve outlet port, the second control valve outlet port communicating with one of the second control valve inlet port and the second control valve exhaust port as a function of a position of the second control valve control member.