US PATENT SUBCLASS 137 / 505.13
.~.~.~ Senses inlet pressure

Current as of: June, 1999
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137 /   HD   FLUID HANDLING

455  DF  LINE CONDITION CHANGE RESPONSIVE VALVES {11}
494  DF  .~ With separate connected fluid reactor surface {8}
505  DF  .~.~ With opening bias (e.g., pressure regulator) {13}
505.13.~.~.~ Senses inlet pressure

DEFINITION

Classification: 137/505.13

(under subclass 505) Devices in which the fluid reactor surface, in communication with tie inlet side of the valve, responds to changes in inlet fluid pressure.