US PATENT SUBCLASS 137 / 882
.~.~.~.~.~ Biased open

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

561 R  DF  SYSTEMS {32}
861  DF  .~ With flow control means for branched passages {8}
877  DF  .~.~ Biased valved {1}
878  DF  .~.~.~ Spring bias {3}
881  DF  .~.~.~.~ Spring coaxial with valve {1}
882.~.~.~.~.~ Biased open

DEFINITION

Classification: 137/882

Biased open:

(under subclass 881) System wherein the resilient means is provided to urge the flow control means to an open position.