FR732240A - Electromagnetic extractor for mining tools - Google Patents

Electromagnetic extractor for mining tools

Info

Publication number
FR732240A
FR732240A FR732240DA FR732240A FR 732240 A FR732240 A FR 732240A FR 732240D A FR732240D A FR 732240DA FR 732240 A FR732240 A FR 732240A
Authority
FR
France
Prior art keywords
mining tools
extractor
electromagnetic
electromagnetic extractor
mining
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.)
Expired
Application number
Other languages
French (fr)
Inventor
Gilbert Giraudier
Francisque Mazet
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 filed Critical
Application granted granted Critical
Publication of FR732240A publication Critical patent/FR732240A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/06—Fishing for or freeing objects in boreholes or wells using magnetic means

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR732240D 1931-04-28 1931-04-28 Electromagnetic extractor for mining tools Expired FR732240A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR732240T 1931-04-28

Publications (1)

Publication Number Publication Date
FR732240A true FR732240A (en) 1932-09-15

Family

ID=9121220

Family Applications (1)

Application Number Title Priority Date Filing Date
FR732240D Expired FR732240A (en) 1931-04-28 1931-04-28 Electromagnetic extractor for mining tools

Country Status (1)

Country Link
FR (1) FR732240A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684002A (en) * 1971-02-18 1972-08-15 United States Steel Corp Starter bar for continuous casting with electromagnetically secured mold stool
US5858938A (en) * 1996-09-23 1999-01-12 The Procter & Gamble Company Liquid personal cleansing compositions which contain a complex coacervate for improved sensory perception

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3684002A (en) * 1971-02-18 1972-08-15 United States Steel Corp Starter bar for continuous casting with electromagnetically secured mold stool
US5858938A (en) * 1996-09-23 1999-01-12 The Procter & Gamble Company Liquid personal cleansing compositions which contain a complex coacervate for improved sensory perception

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