Method of and system for threatening pests

Details Method of and system for threatening pests Method of and system for threatening pests

1984-04-17

1986-01-07

Blum, Theodore M.

Communications, electrical: acoustic wave systems and devices

Transmitter systems

Animal control

340384E, H04B 102

Patent

active

045637598

ABSTRACT:
A method of and system for threatening noxious animals and insects or pests such as rats or mice, pigeons, cockroaches and the like in an area by sonifying the area with an ultrasonic energy. An electrical signal which randomly fluctuates in frequency in a certain range on a central frequency and contains an impacting part changing sharply in frequency from rapid drop to rapid rise is prepared and emitted from a transducer as mechanical ultrasonic oscillation.

REFERENCES:
patent: 3886492 (1975-05-01), White
patent: 4105992 (1978-08-01), Luciano
patent: 4213121 (1980-07-01), Learn et al.
patent: 4219884 (1980-08-01), De Santis

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