CH300472A - Gesteinsbohrer. - Google Patents

Gesteinsbohrer.

Info

Publication number
CH300472A
CH300472A CH300472DA CH300472A CH 300472 A CH300472 A CH 300472A CH 300472D A CH300472D A CH 300472DA CH 300472 A CH300472 A CH 300472A
Authority
CH
Switzerland
Prior art keywords
rock drill
drill
rock
Prior art date
Application number
Other languages
English (en)
Inventor
Company Hughes Tool
Original Assignee
Hughes Tool 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 Hughes Tool Co filed Critical Hughes Tool Co
Publication of CH300472A publication Critical patent/CH300472A/de

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
    • E21B10/16—Roller bits characterised by tooth form or arrangement

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)
  • Earth Drilling (AREA)
CH300472D 1950-12-05 1950-12-08 Gesteinsbohrer. CH300472A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH6871A DE838586C (de) 1950-12-05 1950-12-05 Drehbohrmeissel

Publications (1)

Publication Number Publication Date
CH300472A true CH300472A (de) 1954-08-15

Family

ID=7144840

Family Applications (1)

Application Number Title Priority Date Filing Date
CH300472D CH300472A (de) 1950-12-05 1950-12-08 Gesteinsbohrer.

Country Status (5)

Country Link
BE (1) BE499617A (de)
CH (1) CH300472A (de)
DE (1) DE838586C (de)
FR (1) FR1028209A (de)
NL (1) NL77228C (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1123637B (de) * 1958-05-23 1962-02-15 Hartmetall U Hartmetallwerkzeu Drehbohrmeissel
DE1224230B (de) * 1964-07-06 1966-09-08 Soeding & Halbach J C Schneidrolle fuer Erweiterungsrollenmeissel und andere Vorrichtungen zum Abtragen von Gestein

Also Published As

Publication number Publication date
BE499617A (de)
DE838586C (de) 1952-05-08
NL77228C (de)
FR1028209A (fr) 1953-05-20

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