EP0020730A4 - Method and device for distinguishing materials by thermal conductivity. - Google Patents

Method and device for distinguishing materials by thermal conductivity.

Info

Publication number
EP0020730A4
EP0020730A4 EP19800900143 EP80900143A EP0020730A4 EP 0020730 A4 EP0020730 A4 EP 0020730A4 EP 19800900143 EP19800900143 EP 19800900143 EP 80900143 A EP80900143 A EP 80900143A EP 0020730 A4 EP0020730 A4 EP 0020730A4
Authority
EP
European Patent Office
Prior art keywords
thermal conductivity
distinguishing materials
distinguishing
materials
conductivity
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.)
Ceased
Application number
EP19800900143
Other languages
German (de)
French (fr)
Other versions
EP0020730A1 (en
Inventor
Edwin C Moxon
Wilson P Menashi
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.)
Ceres Corp
Original Assignee
Ceres Corp
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 Ceres Corp filed Critical Ceres Corp
Publication of EP0020730A1 publication Critical patent/EP0020730A1/en
Publication of EP0020730A4 publication Critical patent/EP0020730A4/en
Ceased legal-status Critical Current

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
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/389—Precious stones; Pearls

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analyzing Materials Using Thermal Means (AREA)
EP19800900143 1978-12-29 1980-07-14 Method and device for distinguishing materials by thermal conductivity. Ceased EP0020730A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US97464978A 1978-12-29 1978-12-29
US974649 1978-12-29

Publications (2)

Publication Number Publication Date
EP0020730A1 EP0020730A1 (en) 1981-01-07
EP0020730A4 true EP0020730A4 (en) 1981-05-15

Family

ID=25522309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19800900143 Ceased EP0020730A4 (en) 1978-12-29 1980-07-14 Method and device for distinguishing materials by thermal conductivity.

Country Status (4)

Country Link
EP (1) EP0020730A4 (en)
JP (1) JPS56500100A (en)
IL (1) IL58884A (en)
WO (1) WO1980001414A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG10201506282WA (en) 2015-08-12 2017-03-30 Jubilee Diamond Instr S Pte Ltd Diamond Identification Apparatus
WO2017208053A1 (en) 2016-06-01 2017-12-07 Jubilee Diamond Instrument (S) Pte.Ltd. Precious stone testing device
WO2018220572A1 (en) 2017-06-01 2018-12-06 Jubilee Diamond Instrument(S) Pte Ltd Uv reflection tester
CN112492886A (en) 2017-12-19 2021-03-12 钻禧仪器(新加坡)有限公司 Gem detection device
US10837915B2 (en) 2017-12-19 2020-11-17 Jubilee Diamond Instrument (s) PTE. LTD Gemstone testing apparatus
GB2584876A (en) 2019-06-19 2020-12-23 Jubilee Diamond Instr S Pte Ltd Gemstone testing apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2330599A (en) * 1941-10-17 1943-09-28 Gen Electric Thermal testing apparatus
US2363344A (en) * 1942-11-20 1944-11-21 Edward D Livenick Hasp for padlocks
US2951360A (en) * 1956-03-30 1960-09-06 Gen Electric Thermal conductivity testing
US3457770A (en) * 1967-01-09 1969-07-29 Arvin Systems Inc Thermal testing apparatus
US3611786A (en) * 1969-05-23 1971-10-12 Bell Telephone Labor Inc Measurement of thermal conductivity of hard crystalline bodies
US3668927A (en) * 1970-10-16 1972-06-13 Atlantic Richfield Co Borehole thermal conductivity measurements
US3864969A (en) * 1973-08-06 1975-02-11 Texaco Inc Station measurements of earth formation thermal conductivity

Also Published As

Publication number Publication date
EP0020730A1 (en) 1981-01-07
IL58884A (en) 1985-03-31
JPS56500100A (en) 1981-02-05
IL58884A0 (en) 1980-03-31
WO1980001414A1 (en) 1980-07-10

Similar Documents

Publication Publication Date Title
ZA792823B (en) Device for microbiological purposes
GB2029585B (en) Temperature detecting apparatus
JPS5551430A (en) Pelletizing method and its device
JPS5515599A (en) Text editing device
JPS5566744A (en) Method and device for monitoring web conductivity
NL7903018A (en) ELECTRICALLY HEATED DEVICE AND METHOD.
JPS5548949A (en) Scribing device and method
EP0020730A4 (en) Method and device for distinguishing materials by thermal conductivity.
JPS5588841A (en) Counterrcurrent contact method and its device
JPS5559598A (en) Device for marking burglar
DE2964608D1 (en) Draft sensing apparatus
JPS5538246A (en) Bagging method and its device
JPS54148611A (en) Method and device for printing
JPS5516311A (en) Heating device
JPS5516309A (en) Heating device
JPS5444929A (en) Typing device
GB2015719B (en) Heating device
JPS532502A (en) Improved thermal craking method and apparatus thereof
JPS5592108A (en) Recovery method and its device
JPS54101587A (en) Method and device for drilling
JPS54153695A (en) Endothermic method and device for detecting thermal conductivity
JPS5516383A (en) Heating device
JPS54163063A (en) Draft device
ZA784941B (en) Thermal apparatus
JPS5449215A (en) Typing device

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): CH DE FR GB SE

17P Request for examination filed

Effective date: 19801216

R17P Request for examination filed (corrected)

Effective date: 19801213

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19830910

RIN1 Information on inventor provided before grant (corrected)

Inventor name: MENASHI, WILSON P.

Inventor name: MOXON, EDWIN C.