FR1393107A - Drill foil - Google Patents

Drill foil

Info

Publication number
FR1393107A
FR1393107A FR974298A FR974298A FR1393107A FR 1393107 A FR1393107 A FR 1393107A FR 974298 A FR974298 A FR 974298A FR 974298 A FR974298 A FR 974298A FR 1393107 A FR1393107 A FR 1393107A
Authority
FR
France
Prior art keywords
drill
foil
drill foil
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
FR974298A
Other languages
French (fr)
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.)
Sandvik AB
Original Assignee
Sandvik AB
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 Sandvik AB filed Critical Sandvik AB
Priority to FR974298A priority Critical patent/FR1393107A/en
Application granted granted Critical
Publication of FR1393107A publication Critical patent/FR1393107A/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
    • E21B10/00—Drill bits
    • E21B10/36—Percussion drill bits
    • E21B10/40—Percussion drill bits with leading portion

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)
FR974298A 1964-05-13 1964-05-13 Drill foil Expired FR1393107A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR974298A FR1393107A (en) 1964-05-13 1964-05-13 Drill foil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR974298A FR1393107A (en) 1964-05-13 1964-05-13 Drill foil

Publications (1)

Publication Number Publication Date
FR1393107A true FR1393107A (en) 1965-03-19

Family

ID=8829908

Family Applications (1)

Application Number Title Priority Date Filing Date
FR974298A Expired FR1393107A (en) 1964-05-13 1964-05-13 Drill foil

Country Status (1)

Country Link
FR (1) FR1393107A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995022677A1 (en) * 1994-02-21 1995-08-24 Ilomaeki Valto An apparatus for drilling open a tunnel and drilling method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995022677A1 (en) * 1994-02-21 1995-08-24 Ilomaeki Valto An apparatus for drilling open a tunnel and drilling method

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