Electronic assembly for restricting animals to defined areas

Details Electronic assembly for restricting animals to defined areas Electronic assembly for restricting animals to defined areas

1990-12-10

1991-11-26

Mancene, Gene

Animal husbandry

Bed or rest

340573, A01K 1502

Patent

active

050674412

ABSTRACT:
An animal restraining system includes a radio frequency transmitter adapted to be located adjacent an area in which the animal is to be restrained, a transmitting antenna, and a collar unit worn by the animal. The collar unit has a multiplicity of radio signal receivers each having a highly directional receiving antenna with the receiving antennae of the multiplicity of receivers having their axes of maximum sensitivity oriented in different directions, and an analyzer for determining a composite of the field strengths of the radio signals received by the receiving antennae, and detecting when the composite field strength at the receiving antennae falls below predetermined values. When the detected composite field strength falls below a first predetermined value, a first warning signal is generated to the animal, and a second and different warning signal is generated when the composite field strength falls below a second predetermined value.

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B1 3,753,421 Peck Reexamination Certificate, 9-25-84.

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