BE751227A - DIGITAL HAMMER DRILLING MACHINE - Google Patents

DIGITAL HAMMER DRILLING MACHINE

Info

Publication number
BE751227A
BE751227A BE751227DA BE751227A BE 751227 A BE751227 A BE 751227A BE 751227D A BE751227D A BE 751227DA BE 751227 A BE751227 A BE 751227A
Authority
BE
Belgium
Prior art keywords
drilling machine
hammer drilling
digital hammer
digital
machine
Prior art date
Application number
Other languages
French (fr)
Original Assignee
Boehler & Co Ag Geb
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 Boehler & Co Ag Geb filed Critical Boehler & Co Ag Geb
Publication of BE751227A publication Critical patent/BE751227A/en

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
    • 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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/16—Plural down-hole drives, e.g. for combined percussion and rotary drilling; Drives for multi-bit drilling units
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
BE751227D 1969-05-30 1970-05-29 DIGITAL HAMMER DRILLING MACHINE BE751227A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT513569A AT294728B (en) 1969-05-30 1969-05-30 Popping hammer drill rig

Publications (1)

Publication Number Publication Date
BE751227A true BE751227A (en) 1970-11-03

Family

ID=3572313

Family Applications (1)

Application Number Title Priority Date Filing Date
BE751227D BE751227A (en) 1969-05-30 1970-05-29 DIGITAL HAMMER DRILLING MACHINE

Country Status (6)

Country Link
AT (1) AT294728B (en)
BE (1) BE751227A (en)
CH (1) CH516729A (en)
CS (1) CS172329B2 (en)
DE (1) DE2025439C3 (en)
FR (1) FR2043841A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2758385C3 (en) * 1977-12-28 1981-03-26 Ing. G. Klemm Bohrtechnik GmbH, 57489 Drolshagen Impact drilling device for large holes
US6892834B1 (en) * 1999-06-18 2005-05-17 Beck, Iii August H. Piloted drill barrel and method of using same
FI115245B (en) 2002-11-18 2005-03-31 Hannu Paasonen Cutting device for an abrasive drill

Also Published As

Publication number Publication date
CS172329B2 (en) 1976-12-29
DE2025439A1 (en) 1970-12-17
DE2025439B2 (en) 1980-02-21
CH516729A (en) 1971-12-15
AT294728B (en) 1971-12-10
FR2043841A1 (en) 1971-02-19
DE2025439C3 (en) 1980-10-09

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: GEBR. BOHLER & CO. A.G.

Effective date: 19870531