# US 11,078,091 B2 · System and method for using AC and DC sensors for water treatment

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- Number: US 11,078,091 B2
- Document ID: US11078091B2
- Status: Granted
- Kind: B2
- Application number: 16/259,298
- Filed: 2019-01-28
- Published: 2019-05-23
- Granted: 2021-08-03
- Earliest claimed: 2008-03-06
- Assignees: General Water Systems LLC
- Applicants: Griswold Water Systems, Inc.
- Inventors: Andrew L. Smith
- Web page: https://patentgrep.com/patent/US11078091B2

## CPC

- C02F 1/008: {Control or steering systems not provided for elsewhere in subclass C02F}
- C02F 1/005: {Systems or processes based on supernatural or anthroposophic principles, cosmic or terrestrial radiation, geomancy or rhabdomancy}
- C02F 1/484: {using electromagnets}
- C02F 2201/483: using coils
- C02F 2209/005: Processes using a programmable logic controller [PLC]
- C02F 2209/006: comprising a software program or a logic diagram
- C02F 2209/008: comprising telecommunication features, e.g. modems or antennas
- C02F 2209/11: Turbidity
- C02F 2303/22: Eliminating or preventing deposits, scale removal, scale prevention (C02F1/042, C02F1/4602, C02F5/00 take precedence)
- C02F: TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE (separation in general B01D; special arrangements on waterborne vessels of installations for treating water, waste water or sewage, e.g. for producing fresh water, B63J; adding materials to water to prevent corrosion C23F; treating radioactively-contaminated liquids G21F9/04; regeneration of reactants for recirculation into processes, see the relevant places for the processes)

## Abstract

A system and method are disclosed for automatically operating a high voltage resonance circuit. An embodiment of the system includes one or more coils each coil can be an alternating current (AC) coil or a direct current (DC) coil. An embodiment of the system further includes a microprocessor that issues commands to control amplitude and frequency of pulses of the one or more coils to reach and maintain a resonant condition for water treatment. The microprocessor determines whether a coil is an AC coil or a DC coil by detecting whether a capacitor is connected in series with the coil. An embodiment of the system further includes one or more sensors that measure the quality of water and provide feedback to the microprocessor.

## Claims

### Claim 1

An electrical water treatment system with a self-adjusting high voltage sensor circuit, the electrical water treatment system comprising:
four or more coils, wherein each of the coils is an AC or DC coil and there is at least one DC coil and at least on AC coil;
a memory wherein an AC threshold value and a minimum DC current is stored;
sensors that measure quality of water;
means for checking whether the AC threshold value is met;
means for checking whether the minimum DC current value is met;
means for firing the coils in a sequence, wherein the firing sequence comprises at least one of DC-DC-AC-AC and AC-DC-AC-DC, and wherein length of time for a pulse of one of the AC coils is greater than a time of a DC coil pulse; and
means for self-tuning, using the measured quality of water from the sensors, one or more of the AC coils by adjusting amplitude and frequency of the pulses of the one or more AC coils, wherein a resonant condition is maintained.

### Claim 2 (depends on 1)

The electrical water treatment system of claim 1 wherein the firing sequence is programmable.

### Claim 3 (depends on 1)

The electrical water treatment system of claim 1 further comprising means for self-tuning, using the measured quality of water from the sensors, one or more of the DC coils.