US PATENT SUBCLASS 99 / 527
.~.~.~.~ By valved gas passages

Current as of: June, 1999
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99 /   HD   FOODS AND BEVERAGES: APPARATUS

485  DF  MEANS TO TREAT FOOD {8}
516  DF  .~ By applying fluid {4}
518  DF  .~.~ With disjoining hull from grain {5}
525  DF  .~.~.~ Directing gas adjacent hulling zone {4}
527.~.~.~.~ By valved gas passages

DEFINITION

Classification: 99/527

(under subclass 525) Device including a relatively movable member that stops or varies the flow of gas through a gas entrance or gas exit.

(1) Note. The damper or valve may be self-acting (e.g., due to gas-pressure buildup), spring or weight biased, or, mechanically actuated.