Patent ID: 6959724
Filing Date: 2005-11-01
Classification: F16K,F17C,Y10T

Abstract:
1. An apparatus for controlling the discharge of pressurized fluids from the outlet of a pressurized vessel, the apparatus comprising: a. a port body for communication with the outlet of a pressurized tank defining a fluid discharge path; b. a cylinder valve fixed in or upstream of the port body and adapted for movement between a sealing position that blocks fluid flow through the fluid discharge path and an open position that permits fluid flow along the fluid discharge path; c. a first diaphragm disposed upstream of said cylinder valve, said first diaphragm defining an interior volume isolated from the pressure condition upstream of a first poppet/valve element and engaged with the first poppet/valve element disposed in said first diaphragm to control the movement of the first poppet/valve element in a manner that retains the first poppet/valve element in the sealing position until a pressure differential between the interior and exterior volume of the first diaphragm moves the first poppet/valve element to the open position; and d. a second diaphragm disposed downstream of said cylinder valve, said second diaphragm defining an interior volume isolated from the pressure condition upstream of a second poppet/cylinder valve element and engaged with the second poppet/valve element disposed in said second diaphragm to control the movement of the second poppet/valve element in a manner that retains the second poppet/valve element in the sealing position until a pressure differential between the interior and exterior volume of the second diaphragm which is in communication with the port body moves the second poppet/valve element to the open position.