Patent ID: 8382992

Claim:
An apparatus for disinfecting a fluid, comprising: a fluid-containing structure; an inward-facing first electrically conductive cylindrical body contained within said fluid-containing structure; an outward-facing electrically conductive second cylindrical body disposed within said first cylindrical body, in mutually facing parallel and coaxial relation thereto, and spaced apart therefrom to define a fluid containing cavity; a power supply electrically coupled through a converter to reduce and control incoming voltage of the power supply; the converter electrically coupled with a microprocessor that produces two delayed control signals in two connected transistors at a frequency of between 2 kHz and 5 kHz; and one transistor also electrically coupled to the first cylindrical body and the other transistor further connected to a capacitor which in turn is electrically coupled to the second cylindrical body; thereby producing in the fluid-containing cavity a first pulse and a succeeding pulse of opposite polarity, recurring with a frequency of between 2 kHz and 5 kHz, said pulses having a maximum value of approximately 60 volts per centimeter, said field comprising a waveform approximating a series of alternating square wave pulses of opposite polarity.