Trap for small animals - has ultrasonic generator producing high pitched noise similar to that made by young of species and has anti-rodent powder

摘要

The trap for small animals, esp. rats and mice, consists of an entry gate (12) to small cage (10) with guide walls (14) wich discourage reverse movement. At the side of the case is a small loudspeaker (22) connected to an albrasonic generator (16) which produces a high frequency celtrasonic pulse in the range from 50 kHz to 80 kHz. The loudspeaker is made to emit noises similar to that made by the young of the species which the trap is designed to catch.