FR1203474A - Device for coupling foil tails to perforators used for mining work - Google Patents

Device for coupling foil tails to perforators used for mining work

Info

Publication number
FR1203474A
FR1203474A FR1203474DA FR1203474A FR 1203474 A FR1203474 A FR 1203474A FR 1203474D A FR1203474D A FR 1203474DA FR 1203474 A FR1203474 A FR 1203474A
Authority
FR
France
Prior art keywords
tails
mining work
coupling foil
perforators
perforators used
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
Robert Lorentz
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 FR1203474A publication Critical patent/FR1203474A/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/03—Couplings; joints between drilling rod or pipe and drill motor or surface drive, e.g. between drilling rod and hammer

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR1203474D 1958-10-07 1958-10-07 Device for coupling foil tails to perforators used for mining work Expired FR1203474A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1203474T 1958-10-07

Publications (1)

Publication Number Publication Date
FR1203474A true FR1203474A (en) 1960-01-19

Family

ID=9672456

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1203474D Expired FR1203474A (en) 1958-10-07 1958-10-07 Device for coupling foil tails to perforators used for mining work

Country Status (1)

Country Link
FR (1) FR1203474A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436872A1 (en) * 1978-09-21 1980-04-18 Lorentz Robert Coupling bits and heads of drills for mining work - by attachment element incorporating means for allowing utilisation of tightening tool
FR2493756A1 (en) * 1980-11-10 1982-05-14 Duss Maschf TOOL ATTACHMENT FOR ROTARY HAMMER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2436872A1 (en) * 1978-09-21 1980-04-18 Lorentz Robert Coupling bits and heads of drills for mining work - by attachment element incorporating means for allowing utilisation of tightening tool
FR2493756A1 (en) * 1980-11-10 1982-05-14 Duss Maschf TOOL ATTACHMENT FOR ROTARY HAMMER

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