IT1034282B - Indicatore di livello per liquidi - Google Patents

Indicatore di livello per liquidi

Info

Publication number
IT1034282B
IT1034282B IT21271/75A IT2127175A IT1034282B IT 1034282 B IT1034282 B IT 1034282B IT 21271/75 A IT21271/75 A IT 21271/75A IT 2127175 A IT2127175 A IT 2127175A IT 1034282 B IT1034282 B IT 1034282B
Authority
IT
Italy
Prior art keywords
liquid level
level indicator
indicator
liquid
level
Prior art date
Application number
IT21271/75A
Other languages
English (en)
Italian (it)
Original Assignee
Illinois Tool Works
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 Illinois Tool Works filed Critical Illinois Tool Works
Application granted granted Critical
Publication of IT1034282B publication Critical patent/IT1034282B/it

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
    • G01F23/28—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 the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
    • G01F23/2922—Light, e.g. infrared or ultraviolet for discrete levels with light-conducting sensing elements, e.g. prisms

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Secondary Cells (AREA)
  • Gasket Seals (AREA)
  • Sealing Devices (AREA)
IT21271/75A 1974-03-18 1975-03-14 Indicatore di livello per liquidi IT1034282B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US452086A US3893339A (en) 1974-03-18 1974-03-18 Liquid level indicator

Publications (1)

Publication Number Publication Date
IT1034282B true IT1034282B (it) 1979-09-10

Family

ID=23794969

Family Applications (1)

Application Number Title Priority Date Filing Date
IT21271/75A IT1034282B (it) 1974-03-18 1975-03-14 Indicatore di livello per liquidi

Country Status (8)

Country Link
US (1) US3893339A (US07321065-20080122-C00160.png)
JP (1) JPS5818607B2 (US07321065-20080122-C00160.png)
CA (1) CA1015615A (US07321065-20080122-C00160.png)
DE (1) DE2511427A1 (US07321065-20080122-C00160.png)
FR (1) FR2265071B3 (US07321065-20080122-C00160.png)
GB (1) GB1495417A (US07321065-20080122-C00160.png)
IT (1) IT1034282B (US07321065-20080122-C00160.png)
SE (1) SE403831B (US07321065-20080122-C00160.png)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3954010A (en) * 1975-04-25 1976-05-04 Illinois Tool Works Inc. Visual and electronic battery hydrometer
US4209205A (en) * 1977-12-20 1980-06-24 Caterpillar Tractor Co. Inspection of track assemblies
US4240282A (en) * 1979-09-27 1980-12-23 Illinois Tool Works Inc. Combined level indicator and hydrometer
US4308817A (en) * 1980-08-19 1982-01-05 Illinois Tool Works Inc. State of charge battery monitor
DE3038432A1 (de) * 1980-10-11 1982-07-22 Illinois Tool Works Inc., 60631 Chicago, Ill. Fluessigkeitsstandindikator und hydrometer
US4353252A (en) * 1980-10-23 1982-10-12 Cadbury Schweppes Plc Liquid level sensor
JPS58180457U (ja) * 1982-05-26 1983-12-02 新神戸電機株式会社 電解液の比重液面検出装置
DE3247659A1 (de) * 1982-12-23 1984-06-28 Wolfgang Dr. 7000 Stuttgart Ruhrmann Optischer sensor
US4670660A (en) * 1985-04-04 1987-06-02 Aeroquip Corporation Optical liquid level indicator and method
DE8802367U1 (de) * 1988-02-24 1988-05-05 Niehüser, Hermann, Dipl.-Ing., 4831 Langenberg Schnellverschluß für/an stationären und fahrbaren Tankbehältern
US4866428A (en) * 1988-03-08 1989-09-12 Illinois Tool Works, Inc. Remote battery cell specific gravity and electrolytic level monitor using floats and optical couplers
US5180643A (en) * 1991-12-16 1993-01-19 Illinois Tool Works Inc. Hydrometer collar improvement
US6121755A (en) * 1999-06-03 2000-09-19 Illinois Tool Works Inc. Optical-electronic battery indicator
US6429447B1 (en) 1999-06-09 2002-08-06 Illinois Tool Works Inc. Fluid level indicator
US6393910B1 (en) 2000-01-25 2002-05-28 Illinois Tool Works Inc. One-piece battery charge indicator cage
US7430907B2 (en) * 2004-08-06 2008-10-07 Illinois Tool Works Inc. Hydrometer/fluid level sensor
US7228737B2 (en) * 2004-08-06 2007-06-12 Illinois Tool Works Inc Hydrometer/fluid level sensor
DE102005018897A1 (de) * 2005-04-22 2006-10-26 Hydac Accessories Gmbh Vorrichtung zum Anzeigen und/oder Kontrollieren von Fluiden
US20070240627A1 (en) * 2006-04-18 2007-10-18 Summer Mark J Fluid lever indicator protection sleeve
US9316524B2 (en) 2012-08-08 2016-04-19 Eaton Corporation Visual indicator with sensor
US9316522B2 (en) * 2012-08-08 2016-04-19 Eaton Corporation Visual indicator with sensor
WO2015191560A1 (en) * 2014-06-10 2015-12-17 Bayer Medical Care Inc. Syringe with indicator float

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1221997B (de) * 1960-11-14 1966-07-28 Mueller Artur Fa Muffenrohrverbinder, insbesondere zur Verbindung eines Spuelrohrs mit einem Klosettbecken
DE1866294U (de) * 1961-08-21 1963-01-24 Schraubenfabrik Mayweg K G Verbinder zum anschluss des spuelrohres an dem klosett.
US3362224A (en) * 1964-12-28 1968-01-09 Illinois Tool Works Liquid level indicator
US3379576A (en) * 1965-07-21 1968-04-23 Gen Motors Corp Electrolyte level indicator
US3383917A (en) * 1965-12-08 1968-05-21 Illinois Tool Works Liquid level indicator
US3570311A (en) * 1969-03-19 1971-03-16 Illinois Tool Works Liquid level indicator assembly
US3597971A (en) * 1969-09-08 1971-08-10 Illinois Tool Works Combined level indicator and hydrometer
US3615868A (en) * 1970-02-20 1971-10-26 Illinois Tool Works Battery cap assembly

Also Published As

Publication number Publication date
DE2511427A1 (de) 1975-09-25
GB1495417A (en) 1977-12-21
CA1015615A (en) 1977-08-16
SE7502971L (US07321065-20080122-C00160.png) 1975-09-19
FR2265071A1 (US07321065-20080122-C00160.png) 1975-10-17
FR2265071B3 (US07321065-20080122-C00160.png) 1977-11-25
JPS51105856A (US07321065-20080122-C00160.png) 1976-09-20
SE403831B (sv) 1978-09-04
JPS5818607B2 (ja) 1983-04-14
US3893339A (en) 1975-07-08

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19940331