FR2452091A1 - ALARM DEVICE WITH TIMER FOR CROSSING LIQUID LEVEL THRESHOLD - Google Patents
ALARM DEVICE WITH TIMER FOR CROSSING LIQUID LEVEL THRESHOLDInfo
- 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
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
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/28—Modifications for introducing a time delay before switching
- H03K17/292—Modifications 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.
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)
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)
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 |
-
1979
- 1979-03-20 FR FR7906962A patent/FR2452091A1/en active Granted
-
1980
- 1980-03-06 GB GB8007607A patent/GB2047495A/en not_active Withdrawn
- 1980-03-07 AR AR280228A patent/AR227016A1/en active
- 1980-03-18 IT IT09382/80A patent/IT1153787B/en active
- 1980-03-18 IT IT1980A09382A patent/IT8009382A1/en unknown
- 1980-03-18 ES ES490403A patent/ES8101270A1/en not_active Expired
- 1980-03-19 MX MX181648A patent/MX148401A/en unknown
Patent Citations (3)
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 |