Fluid handling – Line condition change responsive valves – With separate connected fluid reactor surface
Reexamination Certificate
2007-01-30
2007-01-30
Hepperle, Stephen M. (Department: 3753)
Fluid handling
Line condition change responsive valves
With separate connected fluid reactor surface
C137S614000
Reexamination Certificate
active
11209104
ABSTRACT:
A fluid control system for use with toxic or corrosive gases (for example) has been provided that includes a fluid pressure regulator comprising a fluid inlet; a fluid outlet; a first fluid flow path between the fluid inlet and the fluid outlet; a valve seat positioned in the first fluid flow path and dividing the fluid inlet and the fluid outlet; a valve element regulating flow through the valve seat; a generally cylindrical membrane defining an inflatable fluid cavity that moves axially, responsive to inflation; a wall portion of the cavity that moves responsive to inflation and deflation of the cavity; a second fluid flow path communicating between the cavity and a source of pressure outside the cavity; and a link transmitting the movement of the wall portion to the valve element, thereby moving the valve element with respect to the valve seat responsive to inflation and deflation of the cavity.
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Air Products and Chemicals Inc.
Hepperle Stephen M.
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