US PATENT SUBCLASS 137 / 116.5
.~.~.~.~.~ Relief port through common sensing means

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

87.01  DF  SELF-PROPORTIONING OR CORRELATING SYSTEMS {8}
109  DF  .~ Self-controlled branched flow systems {4}
115.01  DF  .~.~ Bypass or relief controlled by main line fluid condition {3}
115.13  DF  .~.~.~ Pressure responsive {9}
116.3  DF  .~.~.~.~ With pressure reducing inlet valve {1}
116.5.~.~.~.~.~ Relief port through common sensing means

DEFINITION

Classification: 137/116.5

(under subclass 116.3) Devices in which a common sensing means for both inlet control and relief control has a valve controlled outlet or relief passage.