FR2452091A1 - ALARM DEVICE WITH TIMER FOR CROSSING LIQUID LEVEL THRESHOLD - Google Patents

ALARM DEVICE WITH TIMER FOR CROSSING LIQUID LEVEL THRESHOLD

Info

Publication number
FR2452091A1
FR2452091A1 FR7906962A FR7906962A FR2452091A1 FR 2452091 A1 FR2452091 A1 FR 2452091A1 FR 7906962 A FR7906962 A FR 7906962A FR 7906962 A FR7906962 A FR 7906962A FR 2452091 A1 FR2452091 A1 FR 2452091A1
Authority
FR
France
Prior art keywords
liquid level
level threshold
timer
alarm device
terminals
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.)
Granted
Application number
FR7906962A
Other languages
French (fr)
Other versions
FR2452091B1 (en
Inventor
Sylvain Joseph Lumbroso
Original Assignee
Jaeger
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 Jaeger filed Critical Jaeger
Priority to FR7906962A priority Critical patent/FR2452091A1/en
Priority to GB8007607A priority patent/GB2047495A/en
Priority to AR280228A priority patent/AR227016A1/en
Priority to ES490403A priority patent/ES8101270A1/en
Priority to IT1980A09382A priority patent/IT8009382A1/en
Priority to IT09382/80A priority patent/IT1153787B/en
Priority to MX181648A priority patent/MX148401A/en
Publication of FR2452091A1 publication Critical patent/FR2452091A1/en
Application granted granted Critical
Publication of FR2452091B1 publication Critical patent/FR2452091B1/fr
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01FMEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/30Indicating 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
    • G01F23/32Indicating 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
    • G01F23/36Indicating 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
    • HELECTRICITY
    • H03ELECTRONIC CIRCUITRY
    • H03KPULSE TECHNIQUE
    • H03K17/00Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28Modifications for introducing a time delay before switching
    • H03K17/292Modifications for introducing a time delay before switching in thyristor, unijunction transistor or programmable unijunction transistor switches

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
  • Level Indicators Using A Float (AREA)

Abstract

L'INVENTION CONCERNE UN CIRCUIT DE COMMANDE TEMPORISEE D'ALERTE, EN PARTICULIER D'UN TYPE DESTINE A ETRE BRANCHE EN SERIE AVEC UN CONTACT DE DETECTION DE SEUIL DE NIVEAU DE LIQUIDE, TEL QUE DU CARBURANT, ET UN DISPOSITIF D'ALERTE, TEL QU'UN VOYANT. IL COMPREND ENTRE SES DEUX BORNES EXTREMES, UN CONDENSATEUR EN SERIE AVEC UNE RESISTANCE ENTRE CES DEUX BORNES, ET DES MOYENS DE COMMANDE QUI REAGISSENT AU FAIT QUE LA TENSION AUX BORNES DU CONDENSATEUR DEPASSE UNE VALEUR PREDETERMINEE EN COURT-CIRCUITANT PRATIQUEMENT LESDITES BORNES EXTREMES.THE INVENTION RELATES TO A TIMED ALERT CONTROL CIRCUIT, IN PARTICULAR OF A TYPE INTENDED TO BE CONNECTED IN SERIES WITH A LIQUID LEVEL THRESHOLD DETECTION CONTACT, SUCH AS FUEL, AND AN ALERT DEVICE, SUCH THAT AN INDICATOR. IT INCLUDES BETWEEN ITS TWO EXTREME TERMINALS, A CAPACITOR IN SERIES WITH A RESISTANCE BETWEEN THESE TWO TERMINALS, AND CONTROL MEANS WHICH REACT TO THE FACT THAT THE VOLTAGE AT THE TERMINALS OF THE CONDENSER EXCEEDS A PREDETERMINED SHORT-CIRCUITED VALUE EXCEEDING THE BOTH THEM.

FR7906962A 1979-03-20 1979-03-20 ALARM DEVICE WITH TIMER FOR CROSSING LIQUID LEVEL THRESHOLD Granted FR2452091A1 (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR7906962A FR2452091A1 (en) 1979-03-20 1979-03-20 ALARM DEVICE WITH TIMER FOR CROSSING LIQUID LEVEL THRESHOLD
GB8007607A GB2047495A (en) 1979-03-20 1980-03-06 Delayed-action warning control circuit
AR280228A AR227016A1 (en) 1979-03-20 1980-03-07 IMPROVEMENTS IN TIMER CIRCUITS ALARM INDICATORS
ES490403A ES8101270A1 (en) 1979-03-20 1980-03-18 Delayed-action warning control circuit
IT1980A09382A IT8009382A1 (en) 1979-03-20 1980-03-18 ALARM DEVICE WITH TIMING FOR EXCEEDING THE LIQUID LEVEL THRESHOLD, IN PARTICULAR FOR THE FUEL LEVEL THRESHOLD IN A VEHICLE
IT09382/80A IT1153787B (en) 1979-03-20 1980-03-18 ALARM DEVICE WITH TIMING FOR EXCEEDING THE LIQUID LEVEL THRESHOLD, IN PARTICULAR OF THE FUEL LEVEL THRESHOLD IN A VEHICLE
MX181648A MX148401A (en) 1979-03-20 1980-03-19 CIRCUIT IMPROVEMENTS FOR THE TIMED GOVERNMENT OF A VEHICLE ALARM

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7906962A FR2452091A1 (en) 1979-03-20 1979-03-20 ALARM DEVICE WITH TIMER FOR CROSSING LIQUID LEVEL THRESHOLD

Publications (2)

Publication Number Publication Date
FR2452091A1 true FR2452091A1 (en) 1980-10-17
FR2452091B1 FR2452091B1 (en) 1983-12-09

Family

ID=9223317

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7906962A Granted FR2452091A1 (en) 1979-03-20 1979-03-20 ALARM DEVICE WITH TIMER FOR CROSSING LIQUID LEVEL THRESHOLD

Country Status (6)

Country Link
AR (1) AR227016A1 (en)
ES (1) ES8101270A1 (en)
FR (1) FR2452091A1 (en)
GB (1) GB2047495A (en)
IT (2) IT1153787B (en)
MX (1) MX148401A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2133232B (en) * 1983-01-04 1986-11-12 Amf Inc Wall switch timing circuit
JPH04136525U (en) * 1991-06-13 1992-12-18 矢崎総業株式会社 Liquid level detection device
DE10232145A1 (en) * 2002-07-13 2004-01-29 Rexroth Indramat Gmbh DC link capacitor short-circuit monitoring
US8975899B2 (en) 2009-09-11 2015-03-10 Sma Solar Technology Ag Inverter device comprising a topology surveying a series of capacitors
US8253424B2 (en) 2009-09-11 2012-08-28 Sma Solar Technology Ag Topology surveying a series of capacitors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1303827A (en) * 1970-04-28 1973-01-24
GB1435086A (en) * 1972-09-06 1976-05-12 Fenton J W Vehilce antitheft device
FR2311284A1 (en) * 1975-05-15 1976-12-10 Mecanique Ind Int Fuel level indicator for motor vehicle - has electrical contacts closing when reserve falls below min. level to deliver warning signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1303827A (en) * 1970-04-28 1973-01-24
GB1435086A (en) * 1972-09-06 1976-05-12 Fenton J W Vehilce antitheft device
FR2311284A1 (en) * 1975-05-15 1976-12-10 Mecanique Ind Int Fuel level indicator for motor vehicle - has electrical contacts closing when reserve falls below min. level to deliver warning signal

Also Published As

Publication number Publication date
MX148401A (en) 1983-04-18
IT1153787B (en) 1987-01-21
ES490403A0 (en) 1980-12-01
AR227016A1 (en) 1982-09-15
IT8009382A0 (en) 1980-03-18
ES8101270A1 (en) 1980-12-01
IT8009382A1 (en) 1981-09-18
GB2047495A (en) 1980-11-26
FR2452091B1 (en) 1983-12-09

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Legal Events

Date Code Title Description
ST Notification of lapse