US PATENT SUBCLASS 73 / 861.62
.~.~.~.~ Adjustable

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

861  DF  VOLUME OR RATE OF FLOW {23}
861.42  DF  .~ Using differential pressure {6}
861.52  DF  .~.~ With restriction {4}
861.61  DF  .~.~.~ Orifice or flow nozzle {1}
861.62.~.~.~.~ Adjustable

DEFINITION

Classification: 73/861.62

Adjustable:

(under subclass 861.61) Subject matter wherein the effective area of the orifice or flow nozzle may be selectively varied.

SEE OR SEARCH THIS CLASS, SUBCLASS:

861.53, wherein the effective area is changed automatically in response to fluid pressure.