US PATENT SUBCLASS 137 / 505.14
.~.~.~ Bias variable during operation

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}
505.14.~.~.~ Bias variable during operation {3}
505.15  DF  .~.~.~.~> Ancillary reactor surface responds to inlet pressure
505.16  DF  .~.~.~.~> Liquid transfer
505.17  DF  .~.~.~.~> Weight

DEFINITION

Classification: 137/505.14

(under subclass 505) Devices with means for automatically varying the opening bias on the valve, so that a variation of fluid condition through the valve (without closing the valve) may be obtained, (e.g., gas supply regulators which permit a greater flow during the high demand period).

SEE OR SEARCH THIS CLASS, SUBCLASS:

468, for similar devices which vary the bias in response to change in thermal conditions of the fluid.

484.2, for similar devices which vary the bias by variation of flow.