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FR2001959A1 - - Google Patents

Info

Publication number
FR2001959A1
FR2001959A1 FR6903594A FR6903594A FR2001959A1 FR 2001959 A1 FR2001959 A1 FR 2001959A1 FR 6903594 A FR6903594 A FR 6903594A FR 6903594 A FR6903594 A FR 6903594A FR 2001959 A1 FR2001959 A1 FR 2001959A1
Authority
FR
France
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
FR6903594A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HARPER NORMAN
MARSHAM HENRY
MARSHAM JOHN
Original Assignee
HARPER NORMAN
MARSHAM HENRY
MARSHAM JOHN
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HARPER NORMAN, MARSHAM HENRY, MARSHAM JOHN filed Critical HARPER NORMAN
Publication of FR2001959A1 publication Critical patent/FR2001959A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
    • G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/30—Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Sampling And Sample Adjustment (AREA)
FR6903594A 1968-02-15 1969-02-14 Withdrawn FR2001959A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB753768A GB1245102A (en) 1968-02-15 1968-02-15 Automatic control of chemical concentration

Publications (1)

Publication Number Publication Date
FR2001959A1 true FR2001959A1 (en) 1969-10-03

Family

ID=9835014

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6903594A Withdrawn FR2001959A1 (en) 1968-02-15 1969-02-14

Country Status (7)

Country Link
US (1) US3643102A (en)
JP (1) JPS4828230B1 (en)
CH (1) CH508941A (en)
DE (1) DE1907486C3 (en)
ES (1) ES363675A1 (en)
FR (1) FR2001959A1 (en)
GB (1) GB1245102A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3776408A (en) * 1971-06-28 1973-12-04 Scott Paper Co Nursing unit
US3992109A (en) * 1973-03-15 1976-11-16 Calspan Corporation Cyclic colorimetry method and apparatus
US4016079A (en) * 1975-09-16 1977-04-05 Aquasol, Inc. Automatic chlorine and pH control apparatus for swimming pools
US4013039A (en) * 1976-09-02 1977-03-22 International Business Machines Corporation Wet processing PH control
US10191498B2 (en) 2015-03-05 2019-01-29 Pentair Water Pool And Spa, Inc. Chemical controller system and method
WO2022076500A1 (en) 2020-10-08 2022-04-14 Ecolab Usa Inc. System and technique for detecting cleaning chemical usage to control cleaning efficacy

Also Published As

Publication number Publication date
US3643102A (en) 1972-02-15
DE1907486B2 (en) 1979-03-22
DE1907486A1 (en) 1969-09-11
JPS4828230B1 (en) 1973-08-30
CH508941A (en) 1971-06-15
GB1245102A (en) 1971-09-08
ES363675A1 (en) 1971-01-01
DE1907486C3 (en) 1979-11-22

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Legal Events

Date Code Title Description
ST Notification of lapse