Patent ID: 6840232
Filing Date: 2005-01-11
Classification: F02M,Y10T

Abstract:
1. 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; a signal chamber in fluid communication with the first portion of the interior chamber, the pressure operable device isolating the signal chamber from the second portion of the interior chamber in the second configuration; and a passageway through the housing, the passageway providing the fluid communication between the first portion of the interior chamber and the signal chamber.