GB412803A - Liquid-level indicator - Google Patents

Liquid-level indicator

Info

Publication number
GB412803A
GB412803A GB25423/33A GB2542333A GB412803A GB 412803 A GB412803 A GB 412803A GB 25423/33 A GB25423/33 A GB 25423/33A GB 2542333 A GB2542333 A GB 2542333A GB 412803 A GB412803 A GB 412803A
Authority
GB
United Kingdom
Prior art keywords
liquid
immersed
glass
level indicator
indicating
Prior art date
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.)
Expired
Application number
GB25423/33A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB25423/33A priority Critical patent/GB412803A/en
Publication of GB412803A publication Critical patent/GB412803A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
    • H01M10/484—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte for measuring electrolyte level, electrolyte density or electrolyte conductivity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms
    • G01F23/2924—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms for several discrete levels, e.g. with more than one light-conducting sensing element
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

412,803. Indicating liquid levels. EURICH, J. E. G., 2, Stratford Avenue, West Didsbury, Manchester. Nov. 17, 1933, No. 25423. [Class 123 (i).] A liquid-level indicator comprises a glass or other transparent body a adapted to depend into the liquid and having at the end to be immersed several totally reflecting surfaces e arranged at different levels for indicating two or more different levels. When not immersed, the top appears bright, but when immersed no light is reflected and it appears dull. Each totally reflecting surface e comprises a pair of flat surfaces containing 90‹ or is of conical or pyramidal form. Each body is of solid glass or comprises two rods a, a<1> joined at their upper end, or the body may be formed as a hollow member, e.g., of metal with a bottom of glass or other reflecting surfaces.
GB25423/33A 1933-11-17 1933-11-17 Liquid-level indicator Expired GB412803A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB25423/33A GB412803A (en) 1933-11-17 1933-11-17 Liquid-level indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25423/33A GB412803A (en) 1933-11-17 1933-11-17 Liquid-level indicator

Publications (1)

Publication Number Publication Date
GB412803A true GB412803A (en) 1934-07-05

Family

ID=10227423

Family Applications (1)

Application Number Title Priority Date Filing Date
GB25423/33A Expired GB412803A (en) 1933-11-17 1933-11-17 Liquid-level indicator

Country Status (1)

Country Link
GB (1) GB412803A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554557A (en) * 1948-01-10 1951-05-29 Gould National Batteries Inc Vent plug and liquid level indicator for batteries
US2615337A (en) * 1948-05-06 1952-10-28 Nat Battery Co Battery liquid level indicator
US2627748A (en) * 1948-03-18 1953-02-10 Nat Battery Co Battery liquid level indicator
US2637209A (en) * 1950-09-23 1953-05-05 Gen Motors Corp Electrolyte level indicator
US2665327A (en) * 1950-02-07 1954-01-05 Oldham & Son Ltd Electrolyte level indication in electrical accumulators
US2809227A (en) * 1953-12-09 1957-10-08 Electric Storage Battery Co Electrolyte level control
US3417615A (en) * 1967-04-26 1968-12-24 Illinois Tool Works Liquid level indicator
US3424004A (en) * 1966-02-21 1969-01-28 Illinois Tool Works Liquid level indicator
US3448616A (en) * 1967-06-29 1969-06-10 Sinclair Research Inc Liquid level detector
US3535933A (en) * 1969-02-17 1970-10-27 Illinois Tool Works Liquid level indicator
US4840137A (en) * 1987-07-01 1989-06-20 Casco Products Corporation Liquid level gauging apparatus
US5279157A (en) * 1992-08-03 1994-01-18 Casco Products Corporation Liquid level monitor

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2554557A (en) * 1948-01-10 1951-05-29 Gould National Batteries Inc Vent plug and liquid level indicator for batteries
US2627748A (en) * 1948-03-18 1953-02-10 Nat Battery Co Battery liquid level indicator
US2615337A (en) * 1948-05-06 1952-10-28 Nat Battery Co Battery liquid level indicator
US2665327A (en) * 1950-02-07 1954-01-05 Oldham & Son Ltd Electrolyte level indication in electrical accumulators
US2637209A (en) * 1950-09-23 1953-05-05 Gen Motors Corp Electrolyte level indicator
US2809227A (en) * 1953-12-09 1957-10-08 Electric Storage Battery Co Electrolyte level control
US3424004A (en) * 1966-02-21 1969-01-28 Illinois Tool Works Liquid level indicator
US3417615A (en) * 1967-04-26 1968-12-24 Illinois Tool Works Liquid level indicator
US3448616A (en) * 1967-06-29 1969-06-10 Sinclair Research Inc Liquid level detector
US3535933A (en) * 1969-02-17 1970-10-27 Illinois Tool Works Liquid level indicator
US4840137A (en) * 1987-07-01 1989-06-20 Casco Products Corporation Liquid level gauging apparatus
US5279157A (en) * 1992-08-03 1994-01-18 Casco Products Corporation Liquid level monitor

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