AU3838699A - Apparatus and method for detecting the level of a liquid - Google Patents

Apparatus and method for detecting the level of a liquid

Info

Publication number
AU3838699A
AU3838699A AU38386/99A AU3838699A AU3838699A AU 3838699 A AU3838699 A AU 3838699A AU 38386/99 A AU38386/99 A AU 38386/99A AU 3838699 A AU3838699 A AU 3838699A AU 3838699 A AU3838699 A AU 3838699A
Authority
AU
Australia
Prior art keywords
detecting
liquid
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.)
Abandoned
Application number
AU38386/99A
Inventor
Robert Jones
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.)
Casco Products Corp
Original Assignee
Casco Products 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 Casco Products Corp filed Critical Casco Products Corp
Publication of AU3838699A publication Critical patent/AU3838699A/en
Abandoned 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
AU38386/99A 1998-06-22 1999-05-11 Apparatus and method for detecting the level of a liquid Abandoned AU3838699A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9813429 1998-06-22
GBGB9813429.9A GB9813429D0 (en) 1998-06-22 1998-06-22 Apparatus and method for detecting the level of a liquid
PCT/GB1999/001476 WO1999067603A1 (en) 1998-06-22 1999-05-11 Apparatus and method for detecting the level of a liquid

Publications (1)

Publication Number Publication Date
AU3838699A true AU3838699A (en) 2000-01-10

Family

ID=10834168

Family Applications (1)

Application Number Title Priority Date Filing Date
AU38386/99A Abandoned AU3838699A (en) 1998-06-22 1999-05-11 Apparatus and method for detecting the level of a liquid

Country Status (6)

Country Link
EP (1) EP1101081A1 (en)
AU (1) AU3838699A (en)
BR (1) BR9911425A (en)
CA (1) CA2335531A1 (en)
GB (1) GB9813429D0 (en)
WO (1) WO1999067603A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0521800D0 (en) * 2005-10-26 2005-12-07 Trw Ltd Optical fluid level detector

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4440022A (en) * 1981-10-14 1984-04-03 Smiths Industries Public Limited Company Liquid-level detection
DE3416206A1 (en) * 1983-05-04 1984-11-08 Basf Ag, 6700 Ludwigshafen Measurement method and measurement circuit for determining the liquid level in a transparent level-indicating tube
EP0185285A3 (en) * 1984-12-18 1987-05-06 Abbott Laboratories Liquid level measurement apparatus
US5274245A (en) * 1992-11-06 1993-12-28 Lee Thomas E Optical liquid level detector using dual varying light emitters
US5997121A (en) * 1995-12-14 1999-12-07 Xerox Corporation Sensing system for detecting presence of an ink container and level of ink therein

Also Published As

Publication number Publication date
WO1999067603A1 (en) 1999-12-29
BR9911425A (en) 2001-03-20
GB9813429D0 (en) 1998-08-19
EP1101081A1 (en) 2001-05-23
CA2335531A1 (en) 1999-12-29

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase