US PATENT SUBCLASS 137 / 56
.~.~ Rotating valve and rotating governor

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

47  DF  SPEED RESPONSIVE VALVE CONTROL {5}
53  DF  .~ Centrifugal mass type (exclusive of liquid) {5}
56.~.~ Rotating valve and rotating governor

DEFINITION

Classification: 137/56

(under subclass 53) Control systems wherein the speed responsive means and the valve or valves are combined to comprise a continuously rotating construction.

SEE OR SEARCH THIS CLASS, SUBCLASS:

55, for valves connected with a speed responsive governor to rotate therewith in order to periodically open and close the valve, the governor producing an axial motion of the valve to control the period and/or extent of valve openings.