Patent ID: 6843264
Filing Date: 2005-01-18
Classification: C23C,F16K,Y10T

Abstract:
1. A multi-unit pressure control valve for stabilizing a pressure of a gas in a vessel by operation of a pump, comprising: a valve housing for confluently connecting the vessel and the pump; a disc-shaped outer vane having a central opening and pivotally mounted in said valve housing; a disc-shaped inner vane pivotally mounted in said central opening; and a valve actuating mechanism having an outer vane motor shaft operably engaging said outer vane for orienting said outer vane in various positions in said valve housing and an inner vane motor shaft operably engaging said inner vane opposite said outer vane motor shaft for orienting said inner vane in various positions in said central opening and modulating flow of the gas from the vessel, through said valve housing to the pump, said outer vane and said inner vane disposed in a common plane with said outer vane motor shaft and said inner vane motor shaft.