HK22192A - Optical fluid level indicator - Google Patents

Optical fluid level indicator

Info

Publication number
HK22192A
HK22192A HK221/92A HK22192A HK22192A HK 22192 A HK22192 A HK 22192A HK 221/92 A HK221/92 A HK 221/92A HK 22192 A HK22192 A HK 22192A HK 22192 A HK22192 A HK 22192A
Authority
HK
Hong Kong
Prior art keywords
fluid level
level indicator
optical fluid
optical
indicator
Prior art date
Application number
HK221/92A
Other languages
English (en)
Inventor
J Michael Mahoney
Original Assignee
Outboard Marine Corp
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 Outboard Marine Corp filed Critical Outboard Marine Corp
Publication of HK22192A publication Critical patent/HK22192A/xx

Links

Classifications

    • 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
    • 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
    • G01F23/04—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 dip members, e.g. dip-sticks
    • 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
    • G01F23/30—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 floats
    • G01F23/64—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 floats of the free float type without mechanical transmission elements

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Level Indicators Using A Float (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
HK221/92A 1985-08-01 1992-03-26 Optical fluid level indicator HK22192A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/761,542 US4625549A (en) 1985-08-01 1985-08-01 Optical fluid level indicator including float with reflecting means

Publications (1)

Publication Number Publication Date
HK22192A true HK22192A (en) 1992-04-03

Family

ID=25062524

Family Applications (1)

Application Number Title Priority Date Filing Date
HK221/92A HK22192A (en) 1985-08-01 1992-03-26 Optical fluid level indicator

Country Status (9)

Country Link
US (1) US4625549A (xx)
JP (1) JPH073358B2 (xx)
BE (1) BE905173A (xx)
BR (1) BR8603637A (xx)
CA (1) CA1287232C (xx)
FR (1) FR2585831B1 (xx)
GB (1) GB2178852B (xx)
HK (1) HK22192A (xx)
IT (1) IT1195884B (xx)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3828821A1 (de) * 1988-08-25 1990-03-01 Bayer Ag Verfahren zur erkennung der ueberflutung einer oberflaeche
US5483831A (en) * 1993-11-09 1996-01-16 Steiner; George A. Direct liquid level reading device
US5862775A (en) * 1996-07-24 1999-01-26 Stroud; John B. Sewer backup indicator
US5950487A (en) * 1996-09-20 1999-09-14 Vista Research, Inc. Gauge for measuring liquid levels
JP3814060B2 (ja) * 1997-09-12 2006-08-23 本田技研工業株式会社 船外機
US6006605A (en) * 1998-09-15 1999-12-28 Sulollari; Enver Level maintaining apparatus for a liquid
US6429447B1 (en) 1999-06-09 2002-08-06 Illinois Tool Works Inc. Fluid level indicator
USD866374S1 (en) * 2018-06-29 2019-11-12 Terry Gene Stange Flush timing sensor
CN110243440B (zh) * 2019-07-10 2021-04-13 山东职业学院 一种机油尺

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731938A (en) * 1956-01-24 Fuel tank gage
US461370A (en) * 1891-10-13 Oil lamp
US2468833A (en) * 1944-07-18 1949-05-03 Electric Storage Battery Co Container liquid level indicator
US2512757A (en) * 1947-09-13 1950-06-27 Rudolph L Westall Liquid level indicator for storage batteries and other liquid containers
US2616941A (en) * 1949-07-13 1952-11-04 Lasko George Anton Indicating apparatus
US3498141A (en) * 1969-01-13 1970-03-03 Illinois Tool Works Liquid level indicator in protective environment
US3570311A (en) * 1969-03-19 1971-03-16 Illinois Tool Works Liquid level indicator assembly
US3895235A (en) * 1974-03-18 1975-07-15 Illinois Tool Works Liquid level and specific gravity indicator
DE2860995D1 (en) * 1977-07-01 1981-11-26 Battelle Memorial Institute Device for generating a light signal characteristic of the refractive index of a fluidand and its use
US4358960A (en) * 1979-05-04 1982-11-16 Ladd Research Industries, Inc. Differential fiber optic proximity sensor
JPS5812826U (ja) * 1981-07-20 1983-01-27 株式会社日立製作所 液面レベル検出器

Also Published As

Publication number Publication date
US4625549A (en) 1986-12-02
GB2178852B (en) 1989-07-26
JPH073358B2 (ja) 1995-01-18
GB2178852A (en) 1987-02-18
CA1287232C (en) 1991-08-06
BR8603637A (pt) 1987-03-10
FR2585831A1 (fr) 1987-02-06
BE905173A (fr) 1987-01-26
JPS6234014A (ja) 1987-02-14
GB8614447D0 (en) 1986-07-16
IT1195884B (it) 1988-10-27
FR2585831B1 (fr) 1993-04-16
IT8648334A0 (it) 1986-07-30

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)