Animal husbandry – Animal controlling or handling – Electromagnetic remote control
Patent
1993-06-21
1995-04-25
Swiatek, Robert P.
Animal husbandry
Animal controlling or handling
Electromagnetic remote control
119908, A01K 1504, A01K 300
Patent
active
054089565
ABSTRACT:
An electronic fence is utilized to control animal access as an alternative to conventional posts and barbed wire fences. The electronic fencing includes stationary field transmitters with variable ranges placed around the perimeter of an accessible area. Each animal in the area wears a small ear tag receiver. When an animal enters an exclusion zone, the receiver triggers an audible tone, and then shortly thereafter an electrical stimulus. The audible tones and electrical stimuli may be repeated three more times at four second intervals until the animal exits the exclusion zone. If the animal hasn't responded, a safety device in the ear tag locks up or disables the unit to prevent the animal from receiving further stimuli. A remote stationary unlock transmitter located in areas frequented by the animals, such as salt licks, mineral or water sources, unlocks any ear tags which have become locked and thus improves the integrity of the system. The ear tag may also be locked by a portable hand held transmitter without stimulation to the animal. The hand held transmitter may also be utilized to unlock the ear tags and to test the system by providing an electronic stimulus to the animal for the purpose of moving selected animals through the exclusion zone when desired.
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Fado John D.
Silverstein M. Howard
Stockhausen Janet I.
Swiatek Robert P.
The United States of America as represented by the Secretary of
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