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GB2270756B - Improvements relating to level control devices - Google Patents

Improvements relating to level control devices

Info

Publication number
GB2270756B
GB2270756B GB9319115A GB9319115A GB2270756B GB 2270756 B GB2270756 B GB 2270756B GB 9319115 A GB9319115 A GB 9319115A GB 9319115 A GB9319115 A GB 9319115A GB 2270756 B GB2270756 B GB 2270756B
Authority
GB
United Kingdom
Prior art keywords
control devices
level control
improvements relating
relating
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 - Fee Related
Application number
GB9319115A
Other versions
GB9319115D0 (en
GB2270756A (en
Inventor
Robert Henry Frederick Evans
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.)
ADEPT PRODUCTIONS Ltd
Original Assignee
ADEPT PRODUCTIONS 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 ADEPT PRODUCTIONS Ltd filed Critical ADEPT PRODUCTIONS Ltd
Publication of GB9319115D0 publication Critical patent/GB9319115D0/en
Publication of GB2270756A publication Critical patent/GB2270756A/en
Application granted granted Critical
Publication of GB2270756B publication Critical patent/GB2270756B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01F23/30—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
    • G01F23/72—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 using magnetically actuated indicating means
    • G01F23/74—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 using magnetically actuated indicating means for sensing changes in level only at discrete points
    • 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
    • G01F23/303—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 characterised by means to prevent fault-level readings due to turbulence of the fluid, e.g. special float housings
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
    • G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Level Indicators Using A Float (AREA)
GB9319115A 1992-09-16 1993-09-15 Improvements relating to level control devices Expired - Fee Related GB2270756B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB929219572A GB9219572D0 (en) 1992-09-16 1992-09-16 Improvements relating to level control devices

Publications (3)

Publication Number Publication Date
GB9319115D0 GB9319115D0 (en) 1993-11-03
GB2270756A GB2270756A (en) 1994-03-23
GB2270756B true GB2270756B (en) 1995-08-02

Family

ID=10721988

Family Applications (2)

Application Number Title Priority Date Filing Date
GB929219572A Pending GB9219572D0 (en) 1992-09-16 1992-09-16 Improvements relating to level control devices
GB9319115A Expired - Fee Related GB2270756B (en) 1992-09-16 1993-09-15 Improvements relating to level control devices

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB929219572A Pending GB9219572D0 (en) 1992-09-16 1992-09-16 Improvements relating to level control devices

Country Status (1)

Country Link
GB (2) GB9219572D0 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB234839A (en) * 1924-05-31 1925-11-12 Stephan Loffler Improvements in liquid-level indicators and regulators for high-pressure receptaclessuch as high-pressure steam boilers
GB393112A (en) * 1931-08-03 1933-06-01 Grant Campbell Improvements in or relating to liquid level regulating apparatus
GB617094A (en) * 1946-04-23 1949-02-01 Davey And United Engineering C Improvements in liquid level controllers and/or indicators
GB752594A (en) * 1954-05-28 1956-07-11 Liquidivision Gauge And Contro Improvements in liquid level indicators
US4259975A (en) * 1979-04-09 1981-04-07 Conoco, Inc. Stock tank gauger-level controller
GB2123148A (en) * 1982-07-01 1984-01-25 Bosch Siemens Hausgeraete Liquid level regulation

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB234839A (en) * 1924-05-31 1925-11-12 Stephan Loffler Improvements in liquid-level indicators and regulators for high-pressure receptaclessuch as high-pressure steam boilers
GB393112A (en) * 1931-08-03 1933-06-01 Grant Campbell Improvements in or relating to liquid level regulating apparatus
GB617094A (en) * 1946-04-23 1949-02-01 Davey And United Engineering C Improvements in liquid level controllers and/or indicators
GB752594A (en) * 1954-05-28 1956-07-11 Liquidivision Gauge And Contro Improvements in liquid level indicators
US4259975A (en) * 1979-04-09 1981-04-07 Conoco, Inc. Stock tank gauger-level controller
GB2123148A (en) * 1982-07-01 1984-01-25 Bosch Siemens Hausgeraete Liquid level regulation

Also Published As

Publication number Publication date
GB9319115D0 (en) 1993-11-03
GB2270756A (en) 1994-03-23
GB9219572D0 (en) 1992-10-28

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Legal Events

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

Effective date: 19990915