US4865748A
Expired / Lapsed
US
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Method and system for variable frequency electromagnetic water treatment
Assignee: AQUA DYNAMICS SYSTEMS Inc
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Filing: 1988-04-20
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Granted: 1989-09-12
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Expires: 2008-04-20
Abstract
Abstract A method and system for utilizing variable frequency electromagnetic energy to inhibit, prevent, reverse, or alter the formation of rust or scale on various liquid contacting surfaces is disclosed. Initially, electromagnetic test signals of varied frequency are directed into a fluid filled system at a first location. The current intensity of the signals are simultaneously measured at a second location some distance from the first location. The measured current intensity, relative to the varied frequency of the test signals, provide an energy absorption/emission profile of the liquid. A treatment frequency-generally the frequency at which maximum absorption is observed-is then selected from such absorption/emission profile and treatment is carried out at such selected frequency.
Inventors
- 👤 Dwain E. Morse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:47
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/48; C02F1/487; C23; C23F; C23F15/00; C02F2303/00; C02F2303/22
Claims Analysis
Total Claims: 22
Claim 1
Independent Claim
125 words
An electromagnetic treatment method for a liquid contained in a system, said method comprising the steps of: a. generating electromagnetic signals of varying frequency; b. directing said electromagnetic signals of varying frequency through a non-insulated conductor into the liquid contained within the system at a first location; c. measuring the current intensity of said signals at a second location spaced from said first location; d. determining the energy absorption/emission characteristics of the liquid in response to the measured current intensity relative to the varying frequency of the signals and determining therefrom a desired treatment frequency; e. generating a static electromagnetic signal at the desired treatment frequency; and f. directing said static electromagnetic signal at the desired treatment frequency through a non-insulated conductor into the liquid.
Claim 2
Dependent Claim
125 words
An electromagnetic treatment method for a liquid contained in a system, said method comprising the steps of: a. generating electromagnetic signals of varying frequency; b. directing said electromagnetic signals of varying frequency through a non-insulated conductor into the liquid contained within the system at a first location; c. measuring the current intensity of said signals at a second location spaced from said first location; d. determining the energy absorption/emission characteristics of the liquid in response to the measured current intensity relative to the varying frequency of the signals and determining therefrom a desired treatment frequency; e. generating a static electromagnetic signal at the desired treatment frequency; and f. directing said static electromagnetic signal at the desired treatment frequency through a non-insulated conductor into the liquid.
Claim 3
Dependent Claim
55 words
The method of claim 1 including the additional steps of: periodically repeating steps a through e to ascertain any change in the absorption/emission characteristics of the liquid; subsequently generating a static electromagnetic signal at a newly determined desired frequency; and directing said static electromagnetic signal at any newly determined desired treatment frequency into the liquid.
Claim 4
Dependent Claim
31 words
The method of claim 2 wherein the step of generating signals of varying frequency comprises operatively connecting through a non-insulated conductor at least one variable frequency electromagnetic generator to the liquid.
Claim 5
Dependent Claim
30 words
The method of claim 1 wherein the step of generating signals of varying frequency comprises providing radiofrequency signals at frequencies varying within the range of 1 KHz to 1000 MHz.
Claim 6
Dependent Claim
32 words
The method of claim 1 wherein the step of generating signals of varying frequency comprises providing radiofrequency signals having a frequency varying within the frequency range of 1 KHz to 500 MHz.
Claim 7
Dependent Claim
31 words
The method of claim 1 wherein the step of generating signals of varying frequency comprises providing radiofrequency signals having a frequency varying in the range of 1 Khz to 100 MHz.
Claim 8
Dependent Claim
33 words
The method of claim 1 wherein the step of directing the electromagnetic signal into the liquid comprises operatively connecting through a non-insulated conductor a single variable frequency electromagnetic signal generator to the liquid.
Claim 9
Dependent Claim
36 words
The method of claim 7 wherein operatively connecting said variable frequency electromagnetic generator to the liquid comprises inserting a non-insulated conductive probe into the liquid and connecting the variable frequency electromagnetic generator to such conductive probe.
Claim 10
Dependent Claim
51 words
The method of claim 7 wherein the step of operatively connecting the variable frequency electromagnetic generator to the liquid is achieved by connecting the electromagnetic generator to at least one non-insulated conductive point on a liquid contacting part of said system through which said signal may be transmitted into the liquid.
Claim 11
Dependent Claim
35 words
The method of claim 1 wherein the step of measuring the current intensity of the signals comprises the steps of providing a current measuring means and attaching said current measuring means to said second location.
Claim 12
Dependent Claim
24 words
The method of claim 10 wherein the step of providing a current measuring means comprises providing an oscilloscope operatively connected to said second location.
Claim 13
Dependent Claim
24 words
The method of claim 10 wherein the step of providing a current measuring means comprises providing a milliammeter operatively connected to said second location.
Claim 14
Dependent Claim
26 words
The method of claim 1 wherein the step of determining the desired treatment frequency comprises identifying the frequency at which maximum absorption of energy is observed.
Claim 15
Dependent Claim
21 words
The method of claim 1 wherein the desired treatment frequency is the frequency at which maximum emission of energy is observed.
Claim 16
Dependent Claim
89 words
An electromagnetic treatment system for a liquid comprising: a variable frequency electromagnetic signal generator operatively connected by a non-insulated conductor to the liquid; means for measuring the current intensity of a plurality of signals of varying frequency emitted by said electromagnetic signal generator after said signals have traveled a distance through the liquid, thereby defining the absorption/emission characteristics of the liquid; and means for thereafter treating the liquid with electromagnetic energy at a static treatment frequency determined on the basis of the previously defined absorption/emission characteristics of the liquid.
Claim 17
Dependent Claim
89 words
An electromagnetic treatment system for a liquid comprising: a variable frequency electromagnetic signal generator operatively connected by a non-insulated conductor to the liquid; means for measuring the current intensity of a plurality of signals of varying frequency emitted by said electromagnetic signal generator after said signals have traveled a distance through the liquid, thereby defining the absorption/emission characteristics of the liquid; and means for thereafter treating the liquid with electromagnetic energy at a static treatment frequency determined on the basis of the previously defined absorption/emission characteristics of the liquid.
Claim 18
Dependent Claim
57 words
The system of claim 15 further comprising: means for periodically remeasuring the current intensity of a plurality of signals of varying frequency emitted by said signal generator after said signals have traveled some distance through the liquid; and means for subsequently adjusting said static treatment frequency to reflect any changes in the absorption/emission characteristics of the liquid.
Claim 19
Dependent Claim
14 words
The system of claim 15 wherein the current intensity measuring means is an oscilloscope.
Claim 20
Dependent Claim
14 words
The system of claim 15 wherein the current intensity measuring means is a milliammeter.
Claim 21
Dependent Claim
25 words
The system of claim 15 wherein said variable frequency electromagnetic signal generator is operatively connected to non-insulated conductive probes in direct contact with the liquid.
Claim 22
Dependent Claim
32 words
The system of claim 15 wherein said variable frequency electromagnetic signal generator is operatively connected to at least one non-insulated conductive member through which said signal may be transmitted into the liquid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |