US PATENT SUBCLASS 137 / 636
.~ With selective motion for plural valve actuator

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

561 R  DF  SYSTEMS {32}
636.~ With selective motion for plural valve actuator {4}
636.1  DF  .~.~> Oppositely movable cam surfaces
636.2  DF  .~.~> Rotation about either of two pivotal axes
636.3  DF  .~.~> Rotation of actuator arm about its pivot and its axis
636.4  DF  .~.~> Reciprocation along and rotation about same axis

DEFINITION

Classification: 137/636

(under subclass 561) Subject matter in which one direction or kind of movement given a single actuator will operate one or a reduced number of a plurality of valves in either an opening or closing direction and another direction or kind of movement given the actuator will operate another, the remaining or all the valves in either an opening or closing direction.