US PATENT SUBCLASS 137 / 630.19
.~.~ Lost motion

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.~.~ Lost motion {3}
630.2  DF  .~.~.~> Cam determines sequence
630.21  DF  .~.~.~> Rotary concentric valves
630.22  DF  .~.~.~> First valve actuates second valve

DEFINITION

Classification: 137/630.19

(under subclass 628) Systems in which there is provided a lost motion connection between the actuating means and one or more of the valves so that a continuous motion of the actuating means causes first one and then other valves to sequentially open or close.

SEE OR SEARCH THIS CLASS, SUBCLASS:

630.16, for sequentially progressive opening of plural valves with subsequent closing of the first opened passage in which there is lost motion between the actuator and the valves.