FR602313A - Mèche de trépan rotative - Google Patents

Mèche de trépan rotative

Info

Publication number
FR602313A
FR602313A FR602313DA FR602313A FR 602313 A FR602313 A FR 602313A FR 602313D A FR602313D A FR 602313DA FR 602313 A FR602313 A FR 602313A
Authority
FR
France
Prior art keywords
rotary
trephine bit
trephine
bit
rotary trephine
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
English (en)
Inventor
Lester Clay Black
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 FR602313A publication Critical patent/FR602313A/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
    • E21B10/08—Roller bits
    • 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
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts

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)
FR602313D 1925-08-20 1925-08-20 Mèche de trépan rotative Expired FR602313A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR602313T 1925-08-20

Publications (1)

Publication Number Publication Date
FR602313A true FR602313A (fr) 1926-03-17

Family

ID=8971903

Family Applications (1)

Application Number Title Priority Date Filing Date
FR602313D Expired FR602313A (fr) 1925-08-20 1925-08-20 Mèche de trépan rotative

Country Status (1)

Country Link
FR (1) FR602313A (fr)

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