GB2179738B - Fluid level responsive apparatus - Google Patents

Fluid level responsive apparatus

Info

Publication number
GB2179738B
GB2179738B GB8620268A GB8620268A GB2179738B GB 2179738 B GB2179738 B GB 2179738B GB 8620268 A GB8620268 A GB 8620268A GB 8620268 A GB8620268 A GB 8620268A GB 2179738 B GB2179738 B GB 2179738B
Authority
GB
United Kingdom
Prior art keywords
fluid level
level responsive
responsive apparatus
fluid
responsive
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
GB8620268A
Other versions
GB8620268D0 (en
GB2179738A (en
Inventor
John Trett
Peter Frederick Bradbeer
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.)
Formula Systems Ltd
Original Assignee
Formula Systems Ltd
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 Formula Systems Ltd filed Critical Formula Systems Ltd
Publication of GB8620268D0 publication Critical patent/GB8620268D0/en
Publication of GB2179738A publication Critical patent/GB2179738A/en
Application granted granted Critical
Publication of GB2179738B publication Critical patent/GB2179738B/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
    • G01F23/296—Acoustic waves

Landscapes

  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Positive-Displacement Pumps (AREA)
GB8620268A 1985-08-20 1986-08-20 Fluid level responsive apparatus Expired GB2179738B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858520793A GB8520793D0 (en) 1985-08-20 1985-08-20 Liquid level responsive apparatus

Publications (3)

Publication Number Publication Date
GB8620268D0 GB8620268D0 (en) 1986-10-01
GB2179738A GB2179738A (en) 1987-03-11
GB2179738B true GB2179738B (en) 1989-08-09

Family

ID=10584021

Family Applications (2)

Application Number Title Priority Date Filing Date
GB858520793A Pending GB8520793D0 (en) 1985-08-20 1985-08-20 Liquid level responsive apparatus
GB8620268A Expired GB2179738B (en) 1985-08-20 1986-08-20 Fluid level responsive apparatus

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB858520793A Pending GB8520793D0 (en) 1985-08-20 1985-08-20 Liquid level responsive apparatus

Country Status (2)

Country Link
AU (1) AU590602B2 (en)
GB (2) GB8520793D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4897822A (en) * 1989-02-10 1990-01-30 Korten Jerome B PLL sonic bilge pump switch
WO1991008530A1 (en) * 1989-12-04 1991-06-13 Peter Parker Control apparatus
FR2768469B1 (en) * 1997-09-12 1999-10-29 Ksb Sa CONTROL OF A MACHINE, IN PARTICULAR OF A SUBMERSIBLE ELECTRIC PUMP, ACCORDING TO ITS LEVEL IN THE WATER
US8221320B2 (en) 2007-09-21 2012-07-17 Baxter International Inc. Access disconnect detection system
WO2010099426A2 (en) * 2009-02-26 2010-09-02 Mount Everest Technology Llc Level sensor system
RU2443981C1 (en) * 2010-11-19 2012-02-27 Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации Resonance acoustic level meter

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB813497A (en) * 1957-01-22 1959-05-21 Bailey Meters Controls Ltd Improvements in apparatus for detecting the presence or absence at a location of a body of fluid
GB1194694A (en) * 1966-07-18 1970-06-10 Nat Sonics Corp Ultrasonic Liquid/Fluid Interface Locating Apparatus and Method
GB1361052A (en) * 1971-07-09 1974-07-24 Radun Controls Ltd Transducer devices
US3889523A (en) * 1974-03-08 1975-06-17 Texaco Inc Leak-detection apparatus and liquid level variations detector
WO1982004122A1 (en) * 1981-05-22 1982-11-25 Hope Bjorn Reinhardt An apparatus for level measurements
GB2177510A (en) * 1985-07-01 1987-01-21 Partridge Wilson And Company L Detecting the presence or absence of a liquid

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB813497A (en) * 1957-01-22 1959-05-21 Bailey Meters Controls Ltd Improvements in apparatus for detecting the presence or absence at a location of a body of fluid
GB1194694A (en) * 1966-07-18 1970-06-10 Nat Sonics Corp Ultrasonic Liquid/Fluid Interface Locating Apparatus and Method
GB1361052A (en) * 1971-07-09 1974-07-24 Radun Controls Ltd Transducer devices
US3889523A (en) * 1974-03-08 1975-06-17 Texaco Inc Leak-detection apparatus and liquid level variations detector
WO1982004122A1 (en) * 1981-05-22 1982-11-25 Hope Bjorn Reinhardt An apparatus for level measurements
GB2177510A (en) * 1985-07-01 1987-01-21 Partridge Wilson And Company L Detecting the presence or absence of a liquid

Also Published As

Publication number Publication date
AU590602B2 (en) 1989-11-09
GB8620268D0 (en) 1986-10-01
GB8520793D0 (en) 1985-09-25
AU6159886A (en) 1987-02-26
GB2179738A (en) 1987-03-11

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19920820