Animal feeder using magnetically biased switch

Details Animal feeder using magnetically biased switch Animal feeder using magnetically biased switch

1977-06-21

1979-07-31

Chamblee, Hugh R.

Animal husbandry

Feeding device

Timer-controlled

119 52AF, A01K 502

Patent

active

041626834

ABSTRACT:
The invention pertains to animal feeders of the automatic type wherein animals, such as dairy cows, may be selectively fed different feed supplements from a pair of feed dispensers wherein a feed transfer actuator worn by the animal selectively energizes feed transfer means upon the animal placing its head within a feed trough. In the practice of the invention feed transfer is controlled by an electric switch biased by a magnetic field, the animal worn actuator being capable of influencing the biasing magnetic field, and hence the switch, to actuate the desired feed transfer apparatus. In the preferred embodiment two feed dispensing troughs and transfer devices are utilized and the magnetic field orientation of each device is reversed with respect to the other whereby the animal worn actuator actuates only one feed dispenser of the system, or the animal worn actuator may be of a universal type capable of actuating both feed dispensers.

REFERENCES:
patent: 2809249 (1957-10-01), Crissinger
patent: 3187129 (1965-06-01), McBrian
patent: 3205323 (1965-09-01), Deshautreaux, Jr.
patent: 3557757 (1971-01-01), Brooks

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