IT1144640B - Dispositivo per la rivelazione del la presenza di una sostanza sulla superficie di un fluido - Google Patents

Dispositivo per la rivelazione del la presenza di una sostanza sulla superficie di un fluido

Info

Publication number
IT1144640B
IT1144640B IT68149/81A IT6814981A IT1144640B IT 1144640 B IT1144640 B IT 1144640B IT 68149/81 A IT68149/81 A IT 68149/81A IT 6814981 A IT6814981 A IT 6814981A IT 1144640 B IT1144640 B IT 1144640B
Authority
IT
Italy
Prior art keywords
substance
fluid
detection
Prior art date
Application number
IT68149/81A
Other languages
English (en)
Other versions
IT8168149A0 (it
Inventor
Ralph A Perry
James M Booe
Original Assignee
Emhart Ind
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 Emhart Ind filed Critical Emhart Ind
Publication of IT8168149A0 publication Critical patent/IT8168149A0/it
Application granted granted Critical
Publication of IT1144640B publication Critical patent/IT1144640B/it

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N25/00—Investigating or analyzing materials by the use of thermal means
    • G01N25/18—Investigating or analyzing materials by the use of thermal means by investigating thermal conductivity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
    • G01N27/14—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature
    • G01N27/18—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G01N33/1826—Organic contamination in water
    • G01N33/1833—Oil in water

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
  • Level Indicators Using A Float (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
IT68149/81A 1980-10-17 1981-08-26 Dispositivo per la rivelazione del la presenza di una sostanza sulla superficie di un fluido IT1144640B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/198,058 US4345459A (en) 1980-10-17 1980-10-17 Sensing device

Publications (2)

Publication Number Publication Date
IT8168149A0 IT8168149A0 (it) 1981-08-26
IT1144640B true IT1144640B (it) 1986-10-29

Family

ID=22731829

Family Applications (2)

Application Number Title Priority Date Filing Date
IT8153558U IT8153558V0 (it) 1980-10-17 1981-08-26 Dispositivo per la rivelazione del la presenza di una sostanza sulla superficie di un fluido
IT68149/81A IT1144640B (it) 1980-10-17 1981-08-26 Dispositivo per la rivelazione del la presenza di una sostanza sulla superficie di un fluido

Family Applications Before (1)

Application Number Title Priority Date Filing Date
IT8153558U IT8153558V0 (it) 1980-10-17 1981-08-26 Dispositivo per la rivelazione del la presenza di una sostanza sulla superficie di un fluido

Country Status (11)

Country Link
US (1) US4345459A (it)
JP (1) JPS5770440A (it)
AU (1) AU535868B2 (it)
CA (1) CA1196411A (it)
DE (1) DE3141217A1 (it)
DK (1) DK364781A (it)
FR (1) FR2492530A1 (it)
GB (1) GB2086052B (it)
IT (2) IT8153558V0 (it)
NO (1) NO813125L (it)
SE (1) SE8106027L (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4725818A (en) * 1985-09-13 1988-02-16 Simplex Time Recorder Co. Walk through test system

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1389477A (fr) * 1963-11-09 1965-02-19 Perfectionnements apportés aux pousse-suppositoires médicaux
US3720797A (en) * 1971-09-10 1973-03-13 K Gunn Gas fusing sensing device
IT1012182B (it) * 1973-05-11 1977-03-10 Asahi Chemical Ind Dispositivo rivelatore di liquidi
US3918034A (en) * 1974-02-11 1975-11-04 Petrotek Oil detection and signaling system
JPS5217891A (en) * 1975-06-28 1977-02-10 Nippon Sheet Glass Co Ltd Device for detection of efflux of ligh-shielding liquid
DE2601410A1 (de) * 1975-12-30 1977-07-21 Robert Heidenreich Inh Frank H Geraet zur anzeige von fluessigen, unloeslichen schichten auf leitenden fluessigkeiten
US4131773A (en) * 1976-03-24 1978-12-26 Texaco Inc. Apparatus for detecting presence of oil in a body of water
NO147929C (no) * 1976-12-20 1983-07-06 Bronson M Potter Deteksjonssystem for oljeforurensning.
DE2837920C2 (de) * 1978-08-31 1987-04-16 Münnich-Debus Meßtechnik KG, 8000 München Flüssigkeitsmeßgeber
US4221125A (en) * 1979-03-09 1980-09-09 Emhart Industries, Inc. Apparatus and method for detecting the presence of a substance on a liquid surface
US4223552A (en) * 1979-03-21 1980-09-23 Emhart Industries, Inc. Apparatus and method for sensing a substance on a liquid surface

Also Published As

Publication number Publication date
NO813125L (no) 1982-04-19
FR2492530B1 (it) 1984-12-28
GB2086052B (en) 1985-06-12
IT8168149A0 (it) 1981-08-26
FR2492530A1 (fr) 1982-04-23
IT8153558V0 (it) 1981-08-26
CA1196411A (en) 1985-11-05
DK364781A (da) 1982-04-18
JPS5770440A (en) 1982-04-30
SE8106027L (sv) 1982-04-18
AU535868B2 (en) 1984-04-05
AU7203981A (en) 1982-04-22
GB2086052A (en) 1982-05-06
US4345459A (en) 1982-08-24
DE3141217A1 (de) 1982-08-26

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