US PATENT SUBCLASS 137 / 881
.~.~.~.~ Spring coaxial with valve

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.~.~.~.~ Spring coaxial with valve {1}
882  DF  .~.~.~.~.~> Biased open

DEFINITION

Classification: 137/881

Spring coaxial with valve:

(under subclass 878) System wherein the axis along which the resilient mass is compressed is coincident with the axis along which the fluent material flow control means moves.