CA963123A - Liquid level indicating system - Google Patents

Liquid level indicating system

Info

Publication number
CA963123A
CA963123A CA146,168A CA146168A CA963123A CA 963123 A CA963123 A CA 963123A CA 146168 A CA146168 A CA 146168A CA 963123 A CA963123 A CA 963123A
Authority
CA
Canada
Prior art keywords
liquid level
level indicating
indicating system
liquid
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
Application number
CA146,168A
Other languages
English (en)
Other versions
CA146168S (en
Inventor
Leo Marcoux
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.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
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 Texas Instruments Inc filed Critical Texas Instruments Inc
Application granted granted Critical
Publication of CA963123A publication Critical patent/CA963123A/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
    • G01F23/24—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
    • G01F23/246—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 thermal devices
    • G01F23/247—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 thermal devices for discrete levels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/18—Safety devices; Monitoring
    • B60T17/22—Devices for monitoring or checking brake systems; Signal devices
    • B60T17/225—Devices for monitoring or checking brake systems; Signal devices brake fluid level indicators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7287—Liquid level responsive or maintaining systems
    • Y10T137/7306—Electrical characteristic sensing

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Control Of Resistance Heating (AREA)
CA146,168A 1971-07-06 1972-06-30 Liquid level indicating system Expired CA963123A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US15989471A 1971-07-06 1971-07-06

Publications (1)

Publication Number Publication Date
CA963123A true CA963123A (en) 1975-02-18

Family

ID=22574554

Family Applications (1)

Application Number Title Priority Date Filing Date
CA146,168A Expired CA963123A (en) 1971-07-06 1972-06-30 Liquid level indicating system

Country Status (6)

Country Link
US (1) US3760352A (it)
CA (1) CA963123A (it)
DE (1) DE2233233A1 (it)
FR (1) FR2144833B1 (it)
GB (1) GB1395637A (it)
IT (1) IT960953B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1450895A (en) * 1972-11-17 1976-09-29 Lucas Electrical Ltd Liquid level detection systems
US4011536A (en) * 1974-11-25 1977-03-08 Technar Incorporated Liquid sensor
US4521373A (en) * 1982-08-23 1985-06-04 General Electric Company Liquid level sensor
DE4434559C2 (de) * 1994-09-28 1999-09-02 Mannesmann Vdo Ag Verfahren und Anordnung zum Betrieb eines Füllstandssensors
DE19741892C2 (de) * 1997-09-23 2001-07-12 Mannesmann Vdo Ag Verfahren und Vorrichtung zur Bestimmung der Quantität und Qualität einer Flüssigkeit
US8562091B2 (en) * 2010-03-09 2013-10-22 Xerox Corporation Apparatus and method for detecting ink in a reservoir using an overdriven thermistor and an electrical conductor extending from the thermistor

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2926299A (en) * 1954-04-21 1960-02-23 Mcdermott Controls Inc Electrical instrument with thermistor sensing element
US2928037A (en) * 1954-12-02 1960-03-08 Avien Inc Thermistor liquid level switch
US3283576A (en) * 1963-10-07 1966-11-08 United Control Corp Means for detecting change of heat transfer rate

Also Published As

Publication number Publication date
FR2144833A1 (it) 1973-02-16
AU4424172A (en) 1974-01-10
US3760352A (en) 1973-09-18
IT960953B (it) 1973-11-30
DE2233233A1 (de) 1973-01-25
GB1395637A (en) 1975-05-29
FR2144833B1 (it) 1976-08-13

Similar Documents

Publication Publication Date Title
CA964345A (en) Liquid level control system
CA968186A (en) Liquid meter
CA954331A (en) Liquid level indication apparatus
CA1007129A (en) Vent for liquid drainage system
AU467997B2 (en) Fluid level indicating devices
AU3881772A (en) Liquid level detecting apparatus
CA985699A (en) Liquid thioester-terminated polymers
CA944729A (en) Liquid pumping system
CA963123A (en) Liquid level indicating system
AU6222273A (en) Liquid level indicating system
CA968584A (en) Liquid level indicator
CA959669A (en) Liquid level indicators
AU478200B2 (en) Liquid level indicating system
CA1006765A (en) Liquid level indicating system
CA808904A (en) Liquid level indicator
CA889423A (en) Liquid level indicator
CA888843A (en) Liquid level measuring arrangement
CA859423A (en) Liquid level indicator
CA831787A (en) Liquid level indicator
CA855488A (en) Liquid level indicator means
CA874004A (en) Automatic liquid scintillation counting system
CA863503A (en) Liquid level detector
AU439301B2 (en) Liquid level senser
CA940887A (en) Liquid meter
CA894350A (en) Liquid level indicator