Ultrasonic pest repeller

Details Ultrasonic pest repeller Ultrasonic pest repeller

1989-09-18

1991-03-12

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Transmitter systems

Animal control

H04B 102

Patent

active

049998188

ABSTRACT:
A relatively simple but highly effective circuit for producing ultrasonic signals which are utilized to repel pests and vermin. The frequency of the signals is sufficiently high to be undetected by humans and most domestic animals and pets.

REFERENCES:
patent: 4284845 (1981-08-01), Belcher
patent: 4338593 (1982-07-01), Mills
patent: 4769794 (1988-09-01), Beuter et al.

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