Importance

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Abstract

A control valve system having housing defining an inlet, an outlet and an exhaust. A first passage extends between the inlet and the outlet and a second passage extends between the outlet and the exhaust. A first plurality of valves are disposed within the first passage, each being selectively actuated to close, open, or partially open the first passage. A second plurality of valves are disposed within the second passage, each being selectively actuated to close, open, or partially open the second passage. A plurality of reset members are selectively engageable with the first plurality of valves and are operable to actuate the first plurality of valves when a pressure is applied to the plurality of reset members. The plurality of reset members each have an anti-tiedown stem extending therefrom to prevent operation of the control valve system if any of the plurality of reset members is tied down.

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First Claim