US PATENT SUBCLASS 137 / 630.2
.~.~.~ Cam determines sequence

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

561 R  DF  SYSTEMS {32}
628  DF  .~ Sequentially progressive opening or closing of plural valves {4}
630.19  DF  .~.~ Lost motion {3}
630.2.~.~.~ Cam determines sequence

DEFINITION

Classification: 137/630.2

(under subclass 630.19) Systems in which cam means, usually between the actuator and the valves, compels the sequential actuation of the valves.

SEE OR SEARCH THIS CLASS, SUBCLASS:

630.16+, for cam actuated sequentially operated valves in which the first opened port is subsequently closed after another port has been opened.