Patent ID: 6082390
Filing Date: 2000-07-04
Classification: G05D,Y10T

Abstract:
A tank and a gas blanket controller in combination, comprising:a tank having a tank outlet;a housing defining a chamber sealed with a diaphragm on a first side of the chamber, and a fitting for the tank outlet on another side of the chamber;the housing being secured to the tank by the fitting;a rod secured to the diaphragm for movement with the diaphragm;a rod guide secured to the housing, the rod being guided by the rod guide;weights secured to the rod providing a force resisting movement of the rod;a control linkage secured to the rod;a microswitch mounted on the housing, the microswitch having a toggle that is actuated by the control linkage;a gas blanket supply line in fluid communication with the tank;a gas blanket motor control valve on the gas blanket supply line;a communication link between the microswitch and the gas blanket motor control valve; andthe rod having a range of motion such that the toggle is operable by contact with the control linkage, whereby the microswitch opens and closes the gas blanket motor control valve upon operation of the toggle and controls fluid flow from the gas blanket supply line to the tank.