Abstract: An electro-pneumatic pressure regulator control system for precisely adjusting the pressure of fluids applied to a fluid-powered tool such as hydraulic cylinders, pneumatic wrenches and the like includes a current-to-pressure (I/P) transducer, and a fluid conduit coupled in fluid communication between the I/P transducer and the tool including a pressure-to-current (P/I) transducer. In addition, the control system includes an interface which converts an information signal generated in a microprocessor to a current signal of a discrete amplitude for driving the I/P transducer. The interface preferably includes digital, solid state circuitry providing accurate control of the signal being delivered to the I/P transducer. In a preferred form of the present invention, a plurality of sub-control electro-pneumatic regulator systems are selectively activated by a single computerized control.

Abstract: A separator device, and a method, for removing water and foreign matter entrained in a compressed fluid is disclosed. The device includes a housing having an inlet port fluidly connected to the compressed fluid source, an outlet port and a chamber fluidly connected to the inlet and outlet ports. A mechanism is provided for separating water entrained in the compressed fluid and for collecting the separated water. Finally, a mechanism periodically purges the collected separated water from the device. The water is, preferably, atomized as it is released from the device.

Abstract: A fluid control valve is provided for use in conjunction with a fluid device and a source of fluid pressure wherein the fluid device includes an expansible fluid chamber which, upon connection to the fluid pressure source, actuates the fluid device while exhaustion of the fluid pressure from the expansible chamber deactuates the fluid device. The fluid control valve, according to the present invention, comprises a valve member and a housing axially slidably disposed over the valve member. The housing further includes a first fluid port adapted for connection with the fluid pressure source, a second fluid port adapted for connection with the expansible chamber of the fluid device and a third fluid port adapted for connection with a source of low fluid pressure. Resilient means are provided within the housing to retain the housing in a central or neutral position relative to the valve member.