GB2243244B - Sensors - Google Patents

Sensors

Info

Publication number
GB2243244B
GB2243244B GB9008852A GB9008852A GB2243244B GB 2243244 B GB2243244 B GB 2243244B GB 9008852 A GB9008852 A GB 9008852A GB 9008852 A GB9008852 A GB 9008852A GB 2243244 B GB2243244 B GB 2243244B
Authority
GB
United Kingdom
Prior art keywords
sensors
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
GB9008852A
Other versions
GB9008852D0 (en
GB2243244A (en
Inventor
Leslie Lilley
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB9008852A priority Critical patent/GB2243244B/en
Publication of GB9008852D0 publication Critical patent/GB9008852D0/en
Publication of GB2243244A publication Critical patent/GB2243244A/en
Application granted granted Critical
Publication of GB2243244B publication Critical patent/GB2243244B/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
    • G01F23/56—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 using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements
    • G01F23/60—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 using elements rigidly fixed to, and rectilinearly moving with, the floats as transmission elements using electrically actuated indicating means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Level Indicators Using A Float (AREA)
GB9008852A 1990-04-19 1990-04-19 Sensors Expired - Fee Related GB2243244B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9008852A GB2243244B (en) 1990-04-19 1990-04-19 Sensors

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9008852A GB2243244B (en) 1990-04-19 1990-04-19 Sensors

Publications (3)

Publication Number Publication Date
GB9008852D0 GB9008852D0 (en) 1990-06-13
GB2243244A GB2243244A (en) 1991-10-23
GB2243244B true GB2243244B (en) 1994-11-16

Family

ID=10674696

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9008852A Expired - Fee Related GB2243244B (en) 1990-04-19 1990-04-19 Sensors

Country Status (1)

Country Link
GB (1) GB2243244B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29618028U1 (en) * 1996-10-17 1998-02-19 Birkholz, Wilhelm, 91058 Erlangen Device for monitoring the level of a liquid medium in a container, in particular a bathtub
GB2360091A (en) * 2000-03-08 2001-09-12 David Kent Liquid level alarm unit
GB2413424A (en) * 2004-04-20 2005-10-26 Michael John Mills A triple function repositionable bath warning device
CN111076795A (en) * 2020-02-19 2020-04-28 温州市凯纹电子科技有限公司 River water level measuring and alarming device

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB946528A (en) * 1961-10-31
GB520449A (en) * 1938-10-22 1940-04-24 Rufus Frank Cottingham Switch controls for electrically heated washing tanks
GB527150A (en) * 1939-04-01 1940-10-03 Whittaker Bros Accrington Ltd Improvements relating to electrically heated liquid containing receptacles
GB641514A (en) * 1948-03-17 1950-08-16 Charles Leslie Stokoe Improvements in electric limit switches in connection with float apparatus
GB818906A (en) * 1957-07-23 1959-08-26 Aerotec Corp Apparatus for indicating or controlling the level of liquids
GB1287395A (en) * 1970-05-08 1972-08-31 Trist Controls Ltd Ronald Float operated signalling device
GB2176005A (en) * 1985-06-06 1986-12-10 William Guy Fletcher Liquid level indicators
GB2184546A (en) * 1985-12-16 1987-06-24 John Vincent Durkan Liquid level alarm
GB2229531A (en) * 1989-03-21 1990-09-26 Lee Russell Simpson Liquid level alarm

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB520449A (en) * 1938-10-22 1940-04-24 Rufus Frank Cottingham Switch controls for electrically heated washing tanks
GB527150A (en) * 1939-04-01 1940-10-03 Whittaker Bros Accrington Ltd Improvements relating to electrically heated liquid containing receptacles
GB641514A (en) * 1948-03-17 1950-08-16 Charles Leslie Stokoe Improvements in electric limit switches in connection with float apparatus
GB818906A (en) * 1957-07-23 1959-08-26 Aerotec Corp Apparatus for indicating or controlling the level of liquids
GB946528A (en) * 1961-10-31
GB1287395A (en) * 1970-05-08 1972-08-31 Trist Controls Ltd Ronald Float operated signalling device
GB2176005A (en) * 1985-06-06 1986-12-10 William Guy Fletcher Liquid level indicators
GB2184546A (en) * 1985-12-16 1987-06-24 John Vincent Durkan Liquid level alarm
GB2229531A (en) * 1989-03-21 1990-09-26 Lee Russell Simpson Liquid level alarm

Also Published As

Publication number Publication date
GB9008852D0 (en) 1990-06-13
GB2243244A (en) 1991-10-23

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Legal Events

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

Effective date: 19960419