GB2287538B - Water level detector and indicator system - Google Patents

Water level detector and indicator system

Info

Publication number
GB2287538B
GB2287538B GB9404751A GB9404751A GB2287538B GB 2287538 B GB2287538 B GB 2287538B GB 9404751 A GB9404751 A GB 9404751A GB 9404751 A GB9404751 A GB 9404751A GB 2287538 B GB2287538 B GB 2287538B
Authority
GB
United Kingdom
Prior art keywords
water level
level detector
indicator system
indicator
detector
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
GB9404751A
Other versions
GB2287538A (en
GB9404751D0 (en
Inventor
Ping-Shin Wang
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.)
Pai Lung Machinery Mill Co Ltd
Original Assignee
Pai Lung Machinery Mill Co 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 Pai Lung Machinery Mill Co Ltd filed Critical Pai Lung Machinery Mill Co Ltd
Priority to GB9404751A priority Critical patent/GB2287538B/en
Publication of GB9404751D0 publication Critical patent/GB9404751D0/en
Publication of GB2287538A publication Critical patent/GB2287538A/en
Application granted granted Critical
Publication of GB2287538B publication Critical patent/GB2287538B/en
Priority to HK98103361A priority patent/HK1004292A1/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
    • G01F23/32—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 rotatable arms or other pivotable transmission elements
    • G01F23/36—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 rotatable arms or other pivotable transmission elements using electrically actuated indicating means
    • 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
    • G01F23/24—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 variations of resistance of resistors due to contact with conductor fluid
    • G01F23/241—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 variations of resistance of resistors due to contact with conductor fluid for discrete levels
    • G01F23/243—Schematic arrangements of probes combined with measuring circuits
GB9404751A 1994-03-10 1994-03-10 Water level detector and indicator system Expired - Fee Related GB2287538B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9404751A GB2287538B (en) 1994-03-10 1994-03-10 Water level detector and indicator system
HK98103361A HK1004292A1 (en) 1994-03-10 1998-04-22 Water level detector and indicator system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9404751A GB2287538B (en) 1994-03-10 1994-03-10 Water level detector and indicator system

Publications (3)

Publication Number Publication Date
GB9404751D0 GB9404751D0 (en) 1994-04-27
GB2287538A GB2287538A (en) 1995-09-20
GB2287538B true GB2287538B (en) 1997-05-21

Family

ID=10751684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9404751A Expired - Fee Related GB2287538B (en) 1994-03-10 1994-03-10 Water level detector and indicator system

Country Status (2)

Country Link
GB (1) GB2287538B (en)
HK (1) HK1004292A1 (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 Ruhnke Christof Device for monitoring the level of a liquid medium in a container, in particular a bathtub
US5942684A (en) * 1997-06-19 1999-08-24 The Boc Group, Inc. Buoyancy force sensor for a hydrometer and interlock for a storage tank used in containing a respirable liquid cryogen
GB0312332D0 (en) * 2003-05-30 2003-07-02 Thorn Paul Pond pump control
GB2431415A (en) * 2005-10-18 2007-04-25 Dlp Ltd Pumped waste unit

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB342618A (en) * 1929-05-24 1931-02-05 Dougree Marihaye Sa Improvements in, or relating to, automatic safety-feed and signalling apparatus for steam generators
GB905861A (en) * 1959-03-06 1962-09-12 Dampferzeuger Veb Improvements in and relating to control apparatus for supervising or regulating the level of liquid in tanks
GB970256A (en) * 1962-01-25 1964-09-16 Monitor Patent Safety Devices Improvements in and relating to liquid level gauges
US3848616A (en) * 1965-05-18 1974-11-19 Santron Corp Fluid flow control systems
US4144521A (en) * 1977-01-15 1979-03-13 General Motors Corporation Signal generator for a fluid-level indicator
US4361039A (en) * 1979-05-08 1982-11-30 Lely Cornelis V D Tank for transporting liquid material
US4483192A (en) * 1982-03-24 1984-11-20 Wachter William J Water level indicator for nuclear reactor vessel
US4779460A (en) * 1987-11-02 1988-10-25 Bltec, Inc. Sensor and system for measuring the level of a liquid in a container

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB342618A (en) * 1929-05-24 1931-02-05 Dougree Marihaye Sa Improvements in, or relating to, automatic safety-feed and signalling apparatus for steam generators
GB905861A (en) * 1959-03-06 1962-09-12 Dampferzeuger Veb Improvements in and relating to control apparatus for supervising or regulating the level of liquid in tanks
GB970256A (en) * 1962-01-25 1964-09-16 Monitor Patent Safety Devices Improvements in and relating to liquid level gauges
US3848616A (en) * 1965-05-18 1974-11-19 Santron Corp Fluid flow control systems
US4144521A (en) * 1977-01-15 1979-03-13 General Motors Corporation Signal generator for a fluid-level indicator
US4361039A (en) * 1979-05-08 1982-11-30 Lely Cornelis V D Tank for transporting liquid material
US4483192A (en) * 1982-03-24 1984-11-20 Wachter William J Water level indicator for nuclear reactor vessel
US4779460A (en) * 1987-11-02 1988-10-25 Bltec, Inc. Sensor and system for measuring the level of a liquid in a container

Also Published As

Publication number Publication date
GB2287538A (en) 1995-09-20
HK1004292A1 (en) 1998-11-20
GB9404751D0 (en) 1994-04-27

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Legal Events

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

Effective date: 20000310