US PATENT SUBCLASS 119 / 505
.~.~.~ With automatic farrowing device

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

416  DF  CONFINING OR HOUSING {11}
502  DF  .~ Pen or rack {6}
503  DF  .~.~ Hog farrowing pen {6}
505.~.~.~ With automatic farrowing device

DEFINITION

Classification: 119/505

With automatic farrowing device:

(under subclass 503) Subject matter including a self-regulating means utilized in the farrowing function.

(1) Note. Included hereunder is a device to diminish the speed or acceleration at which the sow lays down to allow escape of the piglets from under her (i.e., damped sow letdown).