Ultrasonic sound wave generating device for repelling animals
作者： Kenneth L. Morris
DOI: 10.1121/1.396232
关键词:
摘要: A device for repelling animals is disclosed which adapted use with refuse and garbage containers to discourage entry therein by foraging animals. The comprises: (a) a detector remote-sensing the presence of an animal within its vicinity; (b) ultrasonic sound generator producing animal-repelling wave; (c) means temporarily activating when has sensed vicinity.
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