US PATENT SUBCLASS 137 / 45
.~ By pendulum or swinging member

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

38  DF  CONTROL BY CHANGE OF POSITION OR INERTIA OF SYSTEM {5}
45.~ By pendulum or swinging member {1}
46  DF  .~.~> With servo connection to valve

DEFINITION

Classification: 137/45

(under subclass 38) Apparatus wherein the flow is controlled by means of a pendulum or other pivoted member swinging about its pivot in response to a change of position of the system or to the inertia of the system.

SEE OR SEARCH CLASS

33, Geometrical Instruments,

391+, for pendulum type levels or plumbs.