BE685547A - - Google Patents

Info

Publication number
BE685547A
BE685547A BE685547DA BE685547A BE 685547 A BE685547 A BE 685547A BE 685547D A BE685547D A BE 685547DA BE 685547 A BE685547 A BE 685547A
Authority
BE
Belgium
Application number
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
Publication of BE685547A publication Critical patent/BE685547A/xx

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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/14—Fluid operated hammers
    • E21B4/145—Fluid operated hammers of the self propelled-type, e.g. with a reverse mode to retract the device from the hole

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)
  • Excavating Of Shafts Or Tunnels (AREA)
BE685547D 1966-11-17 1966-08-16 BE685547A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB51544/66A GB1152249A (en) 1966-11-17 1966-11-17 Improvements in or relating to a Self-Propelled Pneumatic device for Driving Holes in Ground

Publications (1)

Publication Number Publication Date
BE685547A true BE685547A (fr) 1967-02-01

Family

ID=10460428

Family Applications (1)

Application Number Title Priority Date Filing Date
BE685547D BE685547A (fr) 1966-11-17 1966-08-16

Country Status (3)

Country Link
BE (1) BE685547A (fr)
DE (1) DE1634579B1 (fr)
GB (1) GB1152249A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2401114C3 (de) * 1974-01-10 1982-02-18 Institut gornogo dela Sibirskogo otdelenija Akademii Nauk SSSR, Novosibirsk Schlagvorrichtung zum Herstellen von Erdbohrungen
AT501933A1 (de) * 2004-07-26 2006-12-15 Albrecht Walter Vortriebseinrichtung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE574453A (fr) * 1958-01-24

Also Published As

Publication number Publication date
DE1634579B1 (de) 1970-09-24
GB1152249A (en) 1969-05-14

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: INSTITUT GORNOGO DELA SIBIRSKOGO OTDELENIA AN USS

Effective date: 19860816