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US 4,734,176 AGranted
Pulsed ion generator for water purification system
AssigneePure-N-Simple
InventorsJoseph A. Zemba, Jr., Paul Taylor
Life of this patent
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AssigneePure-N-Simple
InventorsJoseph A. Zemba, Jr., Paul Taylor
Estimating the term…
An electrolysis water purification system employs a fixed magnitude ionization current source the output of which is effectively pulse-width modulated, by controlled switching of the connection of the current source to the ionizing electrodes. As a consequence, ion production can be controlled as a percentage of water flow time (the period during which the filtration pump is operating) and is evenly distributed throughout the water to be purified. The output of a DC power supply is coupled through a controlled switching circuit to the ionizing electrodes. The controlled switching circuit includes a presettable timer-controlled switch that operates under the control of clock generator and establishes the duty cycle of the supply of ionizing current to the electrodes. The output of the presettable timer-controlled switch is coupled through a timer-controlled polarity reversing circuit to the ionizing electrodes. The polarity reversing circuit serves to periodically reverse the current flow through the ionizing electrodes to ensure uniform wear of the electrodes and automatic cleaning of the deposits off the electrodes.
For use with an ionization apparatus for a water purification system, ionizing electrodes of which are arranged to be coupled in the water flow path of the system for providing a controlled quantity of ions in response to the coupling of ionization potentials thereto, an arramgement for controllably coupling ionizing potentials to said electrodes comprising in combination:
For use with an ionization apparatus for a water purification system having first and second electrodes that are coupled in the water flow path of the system and are to be controllably electrically biased to provide a controlled quantity of ions for purifying water, an arrangement for controllably coupling an ionizing bias differential across said electodes comprising, in combination:
For use with a water purification system wherein controlled ionizing potentials are applied to ionizing electrodes which are arranged to be coupled in the water flow path of the system for providing a controlled quantity of ions for purifying the water, a method of controlling the application of ionizing potentials to said electrodes comprising the step of:
Dependencies are inferred from the claim text.