Patent US3883414A successfully refreshed from Google Patents.
US3883414A
Expired / Lapsed
US
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Detector of trace substance in water
Assignee: Shibata Kagaku Kikai Kogyo Kabushiki
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Filing: 1974-03-27
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Granted: 1975-05-13
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Expires: 1994-03-27
Abstract
Abstract The present invention provides a new device and method for automatically detecting and regulating and/or removing concentrations of various substances in aqueous solutions, such as for example, regulating the degree of pollution of urban rivers or industrial effluents, by electrolyzing the ions of these substances dissolved therein through a flow electrolyte cell; then depositing and condensing or dissolving, automatically and with high accuracy, continuously or discontinuously, according to the respective electrolytic potentials of these substances.
Inventors
- 👤 Taitiro Fujinaga
- 👤 Katuo Miura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:07
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/18; G01N33/1813; G01N27/00; G01N27/26; G01N27/416; G01N27/42
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
186 words
A DETECTOR SYSTEM FOR DETECTING IMPURITIES IN WATER, SAID SYSTEM COMPRISING: A SUPPLY MEANS FOR SUPPLYING SUPPORTING ELECTROLYTE; B. FIRST FLOW ELECTROLYTE CELL MEANS COUPLED TO SAID SUPPLY MEANS FOR PURIFYING SAID SUPPORTING ELECTROLYTE, SAID FIRST CELL MEANS INCLUDING A CASING AND A POTENTIOSTAT MEANS; C SAMPLE INJECTOR MEANS INCUDING A SAMPLE RESERVOIR COUPLED TO SAID FIRST CELL MEANS FOR INJECTING A SAMPLE CONTAINING SAID IMPURITIES INTO SAID SYSTEM; D AT LEAST TWO ADDITIONAL FLOW ELECTROLYTE CELL MEANS, INCLUDING A SECOND CELL MEANS COUPLED TO SAID SAMPLE INJECTOR MEANS AND A THIRD CELL MEANS COUPLED TO SAID SECOND CELL MEANS, SAID SECOND AND THIRD CELL MEANS EACH INCLUDING A CASING AND POTENTIOSTAT MEANS; E DEPOLARIZER ELECTRLYTE SUPPLY MEANS COUPLED TO SAID CASING OF EACH OF SAID CELL MEANS, WHEREIN EACH SAID CASING INCLUDES AN AUXILIARY ELECTRODE AND THE DEPOLARIZER ELECTROLYTE FLOWS THROUGH SAID CASING TO CONTACT SAID AUXILIARY ELECTRODE; AND, F RECORDER MEANS COUPLED TO THE POTENTIOSTATS OF SAID AT LEAST TWO ADDITIONAL CELL MEANS FOR RECORDING THE OUTPUT THEREOF, THE OUTPUT OF SAID POTENTIOSTATS BEING INDICATIVE OF THE AMOUNT OF SAID IMPURITIES IN SAID SAMPLE.
Claim 2
Dependent Claim
186 words
A DETECTOR SYSTEM FOR DETECTING IMPURITIES IN WATER, SAID SYSTEM COMPRISING: A SUPPLY MEANS FOR SUPPLYING SUPPORTING ELECTROLYTE; B. FIRST FLOW ELECTROLYTE CELL MEANS COUPLED TO SAID SUPPLY MEANS FOR PURIFYING SAID SUPPORTING ELECTROLYTE, SAID FIRST CELL MEANS INCLUDING A CASING AND A POTENTIOSTAT MEANS; C SAMPLE INJECTOR MEANS INCUDING A SAMPLE RESERVOIR COUPLED TO SAID FIRST CELL MEANS FOR INJECTING A SAMPLE CONTAINING SAID IMPURITIES INTO SAID SYSTEM; D AT LEAST TWO ADDITIONAL FLOW ELECTROLYTE CELL MEANS, INCLUDING A SECOND CELL MEANS COUPLED TO SAID SAMPLE INJECTOR MEANS AND A THIRD CELL MEANS COUPLED TO SAID SECOND CELL MEANS, SAID SECOND AND THIRD CELL MEANS EACH INCLUDING A CASING AND POTENTIOSTAT MEANS; E DEPOLARIZER ELECTRLYTE SUPPLY MEANS COUPLED TO SAID CASING OF EACH OF SAID CELL MEANS, WHEREIN EACH SAID CASING INCLUDES AN AUXILIARY ELECTRODE AND THE DEPOLARIZER ELECTROLYTE FLOWS THROUGH SAID CASING TO CONTACT SAID AUXILIARY ELECTRODE; AND, F RECORDER MEANS COUPLED TO THE POTENTIOSTATS OF SAID AT LEAST TWO ADDITIONAL CELL MEANS FOR RECORDING THE OUTPUT THEREOF, THE OUTPUT OF SAID POTENTIOSTATS BEING INDICATIVE OF THE AMOUNT OF SAID IMPURITIES IN SAID SAMPLE.
Claim 3
Dependent Claim
41 words
The detector of claim 1, further including a programcontroller means coupled to said sample injector means and the potentiostat of said second cell means for controlling the flow through said sample injector means and for controlling the potential of said potentiostat.
Claim 4
Dependent Claim
29 words
The detector of claim 2, wherein the potentiostat of said second cell includes an automatic switch circuit, said program controller means being coupled thereto and controlling said switch circuit.
Claim 5
Dependent Claim
17 words
The detector of claim 3, wherein said switch circuit includes a variable resistor having a slidable tap.
Claim 6
Dependent Claim
19 words
The detector of claim 3, wherein said switch circuit includes a variable resistor having a plurality of predetermined resistances.
Claim 7
Dependent Claim
25 words
The detector of claim 2 wherein said program controller means includes a plurality of cam operated switches and a motor means for driving said cam.
Claim 8
Dependent Claim
32 words
The detector of claim 1, wherein said sample injector means includes a flow electrolyte purification cell having a potentiostat for removing impurities other than said impurities which are detected from said sample.
Claim 9
Dependent Claim
20 words
The detector of claim 1, wherein the potentiostat of said second cell is connected to an a-c superimposing circuit means.
Claim 10
Dependent Claim
47 words
The detector of claim 1, wherein the supply means and said sample reservoir are connected to a nitrogen gas-supply means for dispelling dissolved oxygen therein; and the sample injector means is connected to said nitrogen gas-supply means for forcing out any residual sample solutions and electrolyte therein.
Claim 11
Dependent Claim
19 words
The detector of claim 1, wherein said sample injector means injects the sample into the flow of supporting electrolyte.
Claim 12
Dependent Claim
18 words
The detector of claim 10, wherein said sample is continuously injected into the flow of said supporting electrolyte.
Claim 13
Dependent Claim
18 words
The detector of claim 10 wherein said sample is discontinuously injected into the flow of said supporting electrolyte.
Claim 14
Dependent Claim
81 words
The detector of claim 1, wherein said injector means comPrises first, second, and third disks, said second disk being positioned between said first and third disks and rotatable with respect thereto wherein each disk has a plurality of aligned holes therein such that a sample is injected from said sample supply means into a hole in said second disk and when said second disk is rotated a predetermined amount of said sample is ejected from said hole into said supporting electrolyte.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |