FR1510695A - Level indicator - Google Patents

Level indicator

Info

Publication number
FR1510695A
FR1510695A FR94309A FR94309A FR1510695A FR 1510695 A FR1510695 A FR 1510695A FR 94309 A FR94309 A FR 94309A FR 94309 A FR94309 A FR 94309A FR 1510695 A FR1510695 A FR 1510695A
Authority
FR
France
Prior art keywords
level indicator
indicator
level
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
FR94309A
Other languages
French (fr)
Inventor
Rowan Herbert Colley
Frank Dennison Brownhill
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.)
Rolls Royce PLC
Original Assignee
Rolls Royce PLC
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 Rolls Royce PLC filed Critical Rolls Royce PLC
Application granted granted Critical
Publication of FR1510695A publication Critical patent/FR1510695A/en
Expired legal-status Critical Current

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
    • 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
    • G01F23/02—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 gauge glasses or other apparatus involving a window or transparent tube for directly observing the level to be measured or the level of a liquid column in free communication with the main body of the liquid
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Details Of Rigid Or Semi-Rigid Containers (AREA)
FR94309A 1966-02-10 1967-02-09 Level indicator Expired FR1510695A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5793/66A GB1127811A (en) 1966-02-10 1966-02-10 Improvements in or relating to sight gauges

Publications (1)

Publication Number Publication Date
FR1510695A true FR1510695A (en) 1968-01-19

Family

ID=9802730

Family Applications (1)

Application Number Title Priority Date Filing Date
FR94309A Expired FR1510695A (en) 1966-02-10 1967-02-09 Level indicator

Country Status (3)

Country Link
US (1) US3417730A (en)
FR (1) FR1510695A (en)
GB (1) GB1127811A (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3521366A (en) * 1969-07-28 1970-07-21 Norton Co Visual liquid level measuring device
US3880005A (en) * 1973-11-12 1975-04-29 Gen Electric Fluid level sight gage for dynamoelectric machine mounted within the machine frame
JPS5255756U (en) * 1975-10-20 1977-04-22
JPS60111233U (en) * 1983-12-28 1985-07-27 川崎重工業株式会社 Oil level detection device for oil tank in small boat
US4641025A (en) * 1984-12-05 1987-02-03 The Boeing Company System for determining the position of the boundary between substances having different refractive indices
US7161165B2 (en) * 2004-07-07 2007-01-09 Opti Sensor Systems, Llc Optical transducer for continuously determining liquid level
US7597000B2 (en) * 2006-07-27 2009-10-06 Hamilton Sundstrand Corporation Top view liquid sight level indicator
US7892487B2 (en) 2006-12-13 2011-02-22 S.C. Johnson & Son, Inc. Useful life indicators
US8959999B2 (en) 2011-05-13 2015-02-24 James H. Haskins Particulate material monitoring system
US8720269B2 (en) 2011-05-13 2014-05-13 James H. Haskins Particulate material monitoring system
US20130125809A1 (en) * 2011-11-17 2013-05-23 Briggs & Stratton Corporation System for checking oil level
US9618378B2 (en) * 2013-01-21 2017-04-11 Sikorsky Aircraft Corporation Oil level indicator for rotary wing aircraft transmission
US11422021B2 (en) 2019-11-25 2022-08-23 Rolls-Royce Corporation Oil quantity measurement apparatus and method
CN111266263A (en) * 2020-02-25 2020-06-12 Oppo（重庆）智能科技有限公司 Glue allowance detection method and device and glue dispenser

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US470858A (en) * 1892-03-15 Richard klinger
US888659A (en) * 1906-07-14 1908-05-26 Pearl I Scott Water-gage.
US922829A (en) * 1908-03-14 1909-05-25 William E White Water-glass.
US1042427A (en) * 1912-06-07 1912-10-29 Carl F Gerlinger Water-gage.
US1087466A (en) * 1912-07-08 1914-02-17 Sargent Company Fluid-gage.
US1234924A (en) * 1913-05-31 1917-07-31 Nathan Mfg Co Water-gage.
US1380079A (en) * 1918-04-22 1921-05-31 Sargent Company Water-gage
US1576897A (en) * 1924-06-16 1926-03-16 Boizard Raoul Mirror of reflector water-level gauges
US1577209A (en) * 1924-08-27 1926-03-16 Millard F Elliott Liquid gauge
US2071411A (en) * 1933-07-11 1937-02-23 Schlesische Spiegelglas Manufactur Carl Tielsch Gmbh Gauge glass
US2350712A (en) * 1940-03-01 1944-06-06 Barsties Wilhelm Fluid level gauge
US2314761A (en) * 1941-09-18 1943-03-23 Bochonok Stefan Water gauge
US2633023A (en) * 1952-02-12 1953-03-31 Jerguson Gage & Valve Company Direct reading gauge for cold fluids
US2792710A (en) * 1952-12-02 1957-05-21 Lohr Hubert Inspection glass for liquid level indicators
US3103816A (en) * 1960-11-25 1963-09-17 Sturdevant Mfg Corp Cap and gauge structure for crankcase fill opening

Also Published As

Publication number Publication date
GB1127811A (en) 1968-09-18
US3417730A (en) 1968-12-24

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