SE8802517L - Bergborr - Google Patents

Bergborr

Info

Publication number
SE8802517L
SE8802517L SE8802517A SE8802517A SE8802517L SE 8802517 L SE8802517 L SE 8802517L SE 8802517 A SE8802517 A SE 8802517A SE 8802517 A SE8802517 A SE 8802517A SE 8802517 L SE8802517 L SE 8802517L
Authority
SE
Sweden
Prior art keywords
striker
cutter
neck
polygonal cross
shaft part
Prior art date
Application number
SE8802517A
Other languages
English (en)
Other versions
SE8802517D0 (sv
Inventor
M Oehrn
Original Assignee
Sandvik 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 Sandvik Ab filed Critical Sandvik Ab
Priority to SE8802517A priority Critical patent/SE8802517L/sv
Publication of SE8802517D0 publication Critical patent/SE8802517D0/sv
Publication of SE8802517L publication Critical patent/SE8802517L/sv

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

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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
SE8802517A 1988-07-06 1988-07-06 Bergborr SE8802517L (sv)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE8802517A SE8802517L (sv) 1988-07-06 1988-07-06 Bergborr

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8802517A SE8802517L (sv) 1988-07-06 1988-07-06 Bergborr

Publications (2)

Publication Number Publication Date
SE8802517D0 SE8802517D0 (sv) 1988-07-06
SE8802517L true SE8802517L (sv) 1990-01-07

Family

ID=20372824

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8802517A SE8802517L (sv) 1988-07-06 1988-07-06 Bergborr

Country Status (1)

Country Link
SE (1) SE8802517L (sv)

Also Published As

Publication number Publication date
SE8802517D0 (sv) 1988-07-06

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

Ref document number: 8802517-6

Effective date: 19930427