Animal husbandry – Bed or rest
Patent
1990-05-04
1991-03-05
Swiatek, Robert P.
Animal husbandry
Bed or rest
361120, A01K 1500
Patent
active
049969455
ABSTRACT:
An animal control system with a lightning arrester is provided for controlling the movement of an animal relative to a predetermined outdoor area. A signal transmitter produces an output signal of predetermined frequency. A wire loop transmitting antenna is electrically connected with the transmitter and is positioned at the predetermined outdoor area to transmit the output signal from the transmitter. A portable receiver responsive to the signal from the antenna is carried by the animal. The portable receiver produces an animal control output in the form of an annoying tone or an electrical shock to the animal when the animal moves into a selected vicinity of the antenna. A lightning arrester is electrically connected between the transmitter and the antenna. The lightning arrester includes a pair of choke coils respectively connected from the transmitter to opposite sides of the antenna. Zener diode are respectively used to ground the transmitter side of the choke coils whenever a voltage in excess of the breakdown voltage appears across one of both of of the Zener diodes. Gas tubes respectively ground the antenna side of the choke coils whenever a voltage in excess of the sparkover voltage appears across one or both of the gas tubes. In addition, a gas tube is connected across the antenna on the antenna side of the choke coils.
REFERENCES:
patent: 3753421 (1973-08-01), Peck
patent: 4455586 (1984-06-01), McCartney
patent: 4677518 (1987-06-01), Hershfield
patent: 4745882 (1988-05-01), Yarnall, Sr. et al.
patent: 4903161 (1990-02-01), Huber et al.
patent: 4918565 (1990-04-01), King
Schematic Diagram of Global Computer Supplies' "Lightning Sponge", Model 22, Labeled Exhibit #1.
Joslyn Technical Data of "Data and Signal Cable Protector", Series 1700, Labeled Exhibit #2.
Invisible Fence Company, Inc.
Manahan Todd #E.
Swiatek Robert P.
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