US PATENT SUBCLASS 251 / 116
.~.~.~ With spring

Current as of: June, 1999
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251 /   HD   VALVES AND VALVE ACTUATION

89  DF  WITH MEANS FOR BLOCKING OR DISABLING ACTUATOR {6}
111  DF  .~ Latch manipulator mounted on valve body {3}
114  DF  .~.~ With pivoted latch {2}
116.~.~.~ With spring

DEFINITION

Classification: 251/116

(under subclass 114) Devices wherein the latch is spring biased.