Patent ID: 6935107
Filing Date: 2005-08-30
Classification: F15B

Abstract:
1. An actuator system for positioning a piston within a cylinder of a pneumatic circuit, the cylinder having first and second ends, the system comprising: a compressed air source for providing a flow of compressed air to the pneumatic circuit; a positioner fluidly connected to the compressed air source and configured for regulating the flow of compressed air into and out of the first and second ends; first and second pneumatic valving modules fluidly connected to the positioner and to each one of the first and second ends, the first and second pneumatic valving modules comprising: a safe valve fluidly connected to the compressed air source and to each one of the first and second commutators, the safety valve being configured to open upon attainment of a predetermined pressurization level of the compressed air such that the first and second commutators may be energized; and a volume tank fluidly connecting the compressed air source to the first an second derivative boosters and configured to provide compressed air directly to each one of the first and second derivative boosters upon energization of the first and second commutators.