Patent ID: 6502560
Filing Date: 2003-01-07
Classification: F02M,G05D,Y10T

Abstract:
An integrated pressure management apparatus, comprising:a housing defining an interior chamber, the housing including first and second ports communicating with the interior chamber; a pressure operable device separating the chamber into a first portion and a second portion, the first portion communicating with the first port, the second portion communicating with the second port, the pressure operable device permitting fluid communication between the first and second ports in a first configuration and preventing fluid communication between the first and second ports in a second configuration, the pressure operable device providing relief for a positive pressure that is greater than a first predetermined pressure value and providing relief for a negative pressure that is less than a second predetermined pressure value; a solenoid displacing the device from the first configuration to the second configuration; a switch signaling displacement of the pressure operable device in response to negative pressure at a first pressure level in the first portion of the interior chamber; and a control circuit disposed in the housing and electrically interconnecting the switch, the solenoid, and a plurality of electrical connections fixed to the housing.