FR983901A - Perfectionnement aux trépans ou fleurets à perforer les roches - Google Patents

Perfectionnement aux trépans ou fleurets à perforer les roches

Info

Publication number
FR983901A
FR983901A FR983901DA FR983901A FR 983901 A FR983901 A FR 983901A FR 983901D A FR983901D A FR 983901DA FR 983901 A FR983901 A FR 983901A
Authority
FR
France
Prior art keywords
perforate
rocks
foils
improvement
drill bits
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)
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.)
Joy Manufacturing Co
Original Assignee
Joy Manufacturing 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 Joy Manufacturing Co filed Critical Joy Manufacturing Co
Application granted granted Critical
Publication of FR983901A publication Critical patent/FR983901A/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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts

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)
FR983901D 1948-04-30 1949-04-21 Perfectionnement aux trépans ou fleurets à perforer les roches Expired FR983901A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US983901XA 1948-04-30 1948-04-30

Publications (1)

Publication Number Publication Date
FR983901A true FR983901A (fr) 1951-06-29

Family

ID=22269077

Family Applications (1)

Application Number Title Priority Date Filing Date
FR983901D Expired FR983901A (fr) 1948-04-30 1949-04-21 Perfectionnement aux trépans ou fleurets à perforer les roches

Country Status (1)

Country Link
FR (1) FR983901A (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750156A (en) * 1952-09-16 1956-06-12 Ingersoll Rand Co Rock drilling tool
EP0345096A1 (fr) * 1988-06-03 1989-12-06 Boart International Limited Trépan de forage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2750156A (en) * 1952-09-16 1956-06-12 Ingersoll Rand Co Rock drilling tool
EP0345096A1 (fr) * 1988-06-03 1989-12-06 Boart International Limited Trépan de forage

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