FR1261091A - Trépan - Google Patents

Trépan

Info

Publication number
FR1261091A
FR1261091A FR831268A FR831268A FR1261091A FR 1261091 A FR1261091 A FR 1261091A FR 831268 A FR831268 A FR 831268A FR 831268 A FR831268 A FR 831268A FR 1261091 A FR1261091 A FR 1261091A
Authority
FR
France
Prior art keywords
trepan
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
FR831268A
Other languages
English (en)
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.)
Timken Co
Original Assignee
Timken Roller Bearing Co
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 Timken Roller Bearing Co filed Critical Timken Roller Bearing Co
Priority to FR831268A priority Critical patent/FR1261091A/fr
Application granted granted Critical
Publication of FR1261091A publication Critical patent/FR1261091A/fr
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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers

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)
FR831268A 1960-06-27 1960-06-27 Trépan Expired FR1261091A (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR831268A FR1261091A (fr) 1960-06-27 1960-06-27 Trépan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR831268A FR1261091A (fr) 1960-06-27 1960-06-27 Trépan

Publications (1)

Publication Number Publication Date
FR1261091A true FR1261091A (fr) 1961-05-12

Family

ID=8734307

Family Applications (1)

Application Number Title Priority Date Filing Date
FR831268A Expired FR1261091A (fr) 1960-06-27 1960-06-27 Trépan

Country Status (1)

Country Link
FR (1) FR1261091A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152654A (en) * 1962-05-31 1964-10-13 Timken Roller Bearing Co Drill bit and locking means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152654A (en) * 1962-05-31 1964-10-13 Timken Roller Bearing Co Drill bit and locking means

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