US PATENT SUBCLASS 119 / 53.5
.~.~.~ Animal-controlled

Current as of: June, 1999
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119 /   HD   ANIMAL HUSBANDRY

51.01  DF  FEEDING DEVICE {16}
52.1  DF  .~ Hopper and trough {7}
53  DF  .~.~ Adjustable supply {1}
53.5.~.~.~ Animal-controlled

DEFINITION

Classification: 119/53.5

(under subclass 53) Combined hoppers and troughs provided with means for causing or controlling the flow of feed from hopper to trough, operated by pressure from the feeding animal, generally applied through the animal's nose or forehead.

(1) Note. For other animal-controlled feeding or watering devices, see this class, subclasses 54, 55, 62, 75, and 76.