Apparatus for frightening noxious animals by means of ultrasonic

Details Apparatus for frightening noxious animals by means of ultrasonic Apparatus for frightening noxious animals by means of ultrasonic

1988-10-12

1990-06-12

Tarcza, Thomas H.

Communications, electrical: acoustic wave systems and devices

Transmitter systems

Animal control

43124, H04B 102

Patent

active

049339184

ABSTRACT:
A device for frightening noxious animals by means of ultrasonic signals which includes an electro-acoustic transducer, having elements for electronic oscillation generation controlled by a freely programmable micro computer. The micro computer and the elements for the electronic oscillation generation are so designed that time-varying acoustic signals are randomly generated.

REFERENCES:
patent: 3636559 (1972-01-01), Del Grande et al.
patent: 3872472 (1975-03-01), Moschgat
patent: 4097838 (1978-06-01), Fiala
patent: 4105992 (1978-08-01), Luciano
patent: 4338593 (1982-07-01), Mills
patent: 4484315 (1984-11-01), Hall
patent: 4566085 (1986-01-01), Weinberg

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