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AT269777B - Boring bar for hammer drills - Google Patents

Boring bar for hammer drills

Info

Publication number
AT269777B
AT269777B AT656266A AT656266A AT269777B AT 269777 B AT269777 B AT 269777B AT 656266 A AT656266 A AT 656266A AT 656266 A AT656266 A AT 656266A AT 269777 B AT269777 B AT 269777B
Authority
AT
Austria
Prior art keywords
boring bar
hammer drills
drills
hammer
boring
Prior art date
Application number
AT656266A
Other languages
German (de)
Inventor
Hans Christian Peder Fischer
John Anders Hjaelsten
Original Assignee
Sandvikens Jernverks Ab
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 Sandvikens Jernverks Ab filed Critical Sandvikens Jernverks Ab
Application granted granted Critical
Publication of AT269777B publication Critical patent/AT269777B/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • E21B17/0426—Threaded with a threaded cylindrical portion, e.g. for percussion rods

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)
  • Percussive Tools And Related Accessories (AREA)
AT656266A 1965-07-08 1966-07-08 Boring bar for hammer drills AT269777B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE900965 1965-07-08

Publications (1)

Publication Number Publication Date
AT269777B true AT269777B (en) 1969-04-10

Family

ID=20275593

Family Applications (1)

Application Number Title Priority Date Filing Date
AT656266A AT269777B (en) 1965-07-08 1966-07-08 Boring bar for hammer drills

Country Status (7)

Country Link
AT (1) AT269777B (en)
BE (1) BE683860A (en)
CH (1) CH492116A (en)
DE (1) DE1483863A1 (en)
DK (1) DK113561B (en)
GB (1) GB1120388A (en)
NL (1) NL6609441A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730286A (en) * 1972-06-29 1973-05-01 Exxon Production Research Co Apparatus for improving rotary drilling operations

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1029365A (en) * 1975-03-03 1978-04-11 Lloyd B. Hansen Method and apparatus for roof drilling
GB9512250D0 (en) * 1995-06-16 1995-08-16 Boart Longyear Ltd A drill string
DE29614490U1 (en) * 1996-08-21 1996-11-21 Röhrenwerk Kupferdreh Carl Hamm GmbH, 45257 Essen Probing device, especially for the investigation of soil and contaminated sites
ITMI20071992A1 (en) * 2007-10-16 2009-04-17 Foxley Ventures Llc TUBE FOR ROTO-PERCUSSION

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3730286A (en) * 1972-06-29 1973-05-01 Exxon Production Research Co Apparatus for improving rotary drilling operations

Also Published As

Publication number Publication date
DK113561B (en) 1969-04-08
GB1120388A (en) 1968-07-17
DE1483863A1 (en) 1970-03-05
BE683860A (en) 1966-12-16
NL6609441A (en) 1967-01-09
CH492116A (en) 1970-06-15

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