Sweep frequency pest control apparatus

Details Sweep frequency pest control apparatus Sweep frequency pest control apparatus

1991-11-12

1993-05-11

Lobo, Ian J.

Communications, electrical: acoustic wave systems and devices

Transmitter systems

Animal control

431321, 331178, H04B 102, H03B 100

Patent

active

052107191

ABSTRACT:
An apparatus and method utilizing a sweep-frequency, high voltage generator coupled to an applicator gun for feeding electric power into pest-infested dielectrics, for example termite-infested wood. Utilizing a conventional line frequency of 120 or 60 Hz, the generator produces 140 kilovolts propagated within a spectral band ranging from 15 to 120 kHz and rich in harmonics. Output is discharged through a high-voltage energy storage capacitor charged using an insulated gate bipolar transistor driven by a variable frequency inductively coupled multivibrator. The output voltages penetrate dielectrics and electrocute the pests inside. The invention is effective against insects having hard exoskeletons comprised substantially of cuticulin, chitin, and sclerotin.

REFERENCES:
patent: 4366644 (1983-01-01), Lawrence
patent: 4562561 (1985-12-01), Ackley
patent: 4782623 (1988-11-01), Lawrence
Saksena et al., "A Transistorized swept frequency generator for . . . " Jou. of the Inst. Electronics & Telecommunication Engineers, vol. 22, #3, pp. 119-120, Mar. 1976.

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