GB1436787A - Device for detecting the presence of liquids - Google Patents

Device for detecting the presence of liquids

Info

Publication number
GB1436787A
GB1436787A GB5775973A GB5775973A GB1436787A GB 1436787 A GB1436787 A GB 1436787A GB 5775973 A GB5775973 A GB 5775973A GB 5775973 A GB5775973 A GB 5775973A GB 1436787 A GB1436787 A GB 1436787A
Authority
GB
United Kingdom
Prior art keywords
oscillator
electrodes
audio
circuit
liquid
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
GB5775973A
Other languages
English (en)
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.)
VOLL ELEKTRONIK
VOLL W
Original Assignee
VOLL ELEKTRONIK
VOLL W
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 VOLL ELEKTRONIK, VOLL W filed Critical VOLL ELEKTRONIK
Publication of GB1436787A publication Critical patent/GB1436787A/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
    • G01F23/30—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
    • G01F23/68—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 electrically actuated indicating means
    • G01F23/70—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 electrically 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
    • G01F23/22—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
    • 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
    • G01F23/26—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
    • G01F23/263—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
    • G01F23/265—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 capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors for discrete levels

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Thermal Sciences (AREA)
  • Electromagnetism (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Level Indicators Using A Float (AREA)
  • Emergency Alarm Devices (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
GB5775973A 1972-12-21 1973-12-13 Device for detecting the presence of liquids Expired GB1436787A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2262559A DE2262559C3 (de) 1972-12-21 1972-12-21 Nachweisgerät mit Schall-Warnsignalgeber für elektrisch leitfähige und nichtlettfähige Flüssigkeiten

Publications (1)

Publication Number Publication Date
GB1436787A true GB1436787A (en) 1976-05-26

Family

ID=5865023

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5775973A Expired GB1436787A (en) 1972-12-21 1973-12-13 Device for detecting the presence of liquids

Country Status (5)

Country Link
US (1) US3889247A (cg-RX-API-DMAC7.html)
JP (1) JPS4991496A (cg-RX-API-DMAC7.html)
DE (1) DE2262559C3 (cg-RX-API-DMAC7.html)
FR (1) FR2211700B1 (cg-RX-API-DMAC7.html)
GB (1) GB1436787A (cg-RX-API-DMAC7.html)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180939A (en) * 1985-09-25 1987-04-08 Partridge Wilson And Company L Equipment for detecting when the level of a liquid in a container drops below a predetermined level
GB2186722A (en) * 1986-02-17 1987-08-19 John Arthur Webb Detecting leakage of liquid from machines
GB2241336A (en) * 1988-09-20 1991-08-28 Donald P Dattilo An indicator for a battery sensor
GB2248939A (en) * 1990-09-13 1992-04-22 Pump International Limited Capacitive switch for an automatic pump
GB2253703A (en) * 1991-03-14 1992-09-16 Issam Moh D Ahmed Wadi Electronic liquid level sensing device

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51108659U (cg-RX-API-DMAC7.html) * 1975-02-27 1976-08-31
JPS5217084A (en) * 1975-07-30 1977-02-08 Takaaki Hayashi Oil-water relay
US3978463A (en) * 1975-08-04 1976-08-31 General Motors Corporation Oscillator energized liquid level indicator
JPS53137895U (cg-RX-API-DMAC7.html) * 1977-04-07 1978-10-31
US4227190A (en) * 1979-02-26 1980-10-07 Kelley Jerry K Water alarm for monitoring floor moisture
US4325060A (en) * 1979-12-17 1982-04-13 Purtell Jack L Floating water detector
US4784645A (en) * 1982-11-04 1988-11-15 The Johns Hopkins University Apparatus for detecting a condition of a medication infusion system and providing an informational signal in response thereto
US5196341A (en) * 1986-03-19 1993-03-23 Cmb Foodcan Plc Apparatus for detecting micro-organisms
US5091715A (en) * 1990-01-08 1992-02-25 Murphy Anthony J Leak detection and alarm system
US5661462A (en) * 1996-05-06 1997-08-26 Shrewsbury-Gee; Christopher Bath overflow alarm
US6799820B1 (en) * 1999-05-20 2004-10-05 Seiko Epson Corporation Liquid container having a liquid detecting device
CN1198730C (zh) 2000-05-18 2005-04-27 精工爱普生株式会社 检测墨水消耗的方法和装置
US7137679B2 (en) 2000-05-18 2006-11-21 Seiko Epson Corporation Ink consumption detecting method, and ink jet recording apparatus
US7225670B2 (en) * 2000-05-18 2007-06-05 Seiko Epson Corporation Mounting structure, module, and liquid container
EP1283110B1 (en) * 2000-05-18 2009-03-04 Seiko Epson Corporation Ink consumption detecting method, and ink jet recording apparatus
EP1679196B1 (en) * 2000-06-15 2008-05-07 Seiko Epson Corporation Liquid charging method, liquid container, and method for manufacturing the same
CA2376135C (en) 2000-07-07 2005-09-27 Seiko Epson Corporation Liquid container, ink-jet recording apparatus, apparatus and method for controlling the same, apparatus and method for detecting liquid consumption state
EP1176403A3 (en) * 2000-07-28 2003-03-19 Seiko Epson Corporation Detector of liquid consumption condition
US6690281B2 (en) * 2000-12-18 2004-02-10 Joseph A. Palmer Water detector and alarm
US7096522B2 (en) * 2002-12-06 2006-08-29 Hirtriter R Eric Bath overflow alarm suitable for different installation arrangements
US7191647B2 (en) * 2003-10-30 2007-03-20 Perkinelmer Las, Inc. Method and apparatus to reject electrical interference in a capacitive liquid level sensor system
US20060049953A1 (en) * 2004-09-07 2006-03-09 Chin-Lai Su Container having photo-audio effect
US20110056289A1 (en) * 2009-09-07 2011-03-10 Senghaas Karl A Floatless Rain Gauge
DE102010027324B4 (de) * 2010-07-16 2019-04-18 Volker Thielmann Füllstandsanzeige

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1443357A (en) * 1921-08-04 1923-01-30 Gardner Benjamin Fulton Audible sound instrument
US3432843A (en) * 1966-01-20 1969-03-11 Jensen Ind Inc Signal means
DE1929881A1 (de) * 1968-06-17 1969-12-18 Paolo Spadini Akustischer Generator
US3636544A (en) * 1970-01-19 1972-01-18 Jorge G Codina Alarm
US3732556A (en) * 1971-06-25 1973-05-08 N Caprillo Swimming pool alarm system
US3781840A (en) * 1972-06-02 1973-12-25 Gen Electric Instrument for guiding the blind in filling open-top vessels

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2180939A (en) * 1985-09-25 1987-04-08 Partridge Wilson And Company L Equipment for detecting when the level of a liquid in a container drops below a predetermined level
GB2186722A (en) * 1986-02-17 1987-08-19 John Arthur Webb Detecting leakage of liquid from machines
GB2241336A (en) * 1988-09-20 1991-08-28 Donald P Dattilo An indicator for a battery sensor
GB2248939A (en) * 1990-09-13 1992-04-22 Pump International Limited Capacitive switch for an automatic pump
GB2248939B (en) * 1990-09-13 1994-08-31 Pump International Limited Switch for an automatic pump
GB2253703A (en) * 1991-03-14 1992-09-16 Issam Moh D Ahmed Wadi Electronic liquid level sensing device

Also Published As

Publication number Publication date
DE2262559A1 (de) 1974-07-11
US3889247A (en) 1975-06-10
JPS4991496A (cg-RX-API-DMAC7.html) 1974-08-31
FR2211700A1 (cg-RX-API-DMAC7.html) 1974-07-19
FR2211700B1 (cg-RX-API-DMAC7.html) 1977-06-24
DE2262559C3 (de) 1975-11-13
DE2262559B2 (de) 1975-04-10

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee