US PATENT SUBCLASS 137 / 614.04
.~.~.~.~.~ Valves actuate each other

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

561 R  DF  SYSTEMS {32}
613  DF  .~ Flow path with serial valves and/or closures {7}
614  DF  .~.~ Separable flow path section, valve or closure in each {4}
614.02  DF  .~.~.~ Each valve and/or closure operated by coupling motion {1}
614.03  DF  .~.~.~.~ Linear motion of flow path sections operates both {1}
614.04.~.~.~.~.~ Valves actuate each other

DEFINITION

Classification: 137/614.04

(under subclass 614.03) Systems in which the force which moves the valves, flow controllers, or closures is transmitted from one to the other and vice versa.