Patent ID: 6772784
Filing Date: 2004-08-10
Classification: B24B,F15B,G05D,Y10T

Abstract:
A proportional pneumatic pressure regulator assembly, said assembly comprising:a main body having a first inlet adapted for fluid communication with a supply of positive pneumatic pressure, a second inlet adapted for fluid communication with a supply of negative pneumatic pressure, at least one outlet adapted for fluid communication with at least one pneumatically actuated device, and an exhaust port; a fill regulator valve in fluid communication with said first inlet port and said outlet, said fill regulator valve adapted to regulate the supply of positive pressure to a predetermined value from said first inlet through said outlet to a pneumatically actuated device when said fill regulator valve is actuated; a vacuum regulator valve in fluid communication with said second inlet port and said outlet, said vacuum regulator valve adapted to regulate the supply of negative pressure to a predetermined value from said second inlet through said outlet to a pneumatically actuated device when said vacuum regulator valve is actuated; an exhaust valve in fluid communication with said outlet and operable to exhaust pressure from said outlet through said exhaust port when said exhaust valve is actuated; a control circuit assembly in electrical communication with said fill regulator valve, said vacuum regulator valve, and said exhaust valve, said control assembly adapted to receive a command signal to actuate either said fill regulator valve, said vacuum regulator valve, or said exhaust valve in response to the command signal, said control circuit assembly further adapted to receive a feedback signal and to regulate the amount of positive pneumatic pressure through said fill regulator valve or the amount of negative pneumatic pressure through said vacuum regulator valve in response to the feedback signal.