ZA822203B - An extension coupling for rock drilling equipment - Google Patents

An extension coupling for rock drilling equipment

Info

Publication number
ZA822203B
ZA822203B ZA822203A ZA822203A ZA822203B ZA 822203 B ZA822203 B ZA 822203B ZA 822203 A ZA822203 A ZA 822203A ZA 822203 A ZA822203 A ZA 822203A ZA 822203 B ZA822203 B ZA 822203B
Authority
ZA
South Africa
Prior art keywords
drilling equipment
rock drilling
extension coupling
extension
coupling
Prior art date
Application number
ZA822203A
Inventor
G Gustafsson
Original Assignee
Fagersta 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 Fagersta Ab filed Critical Fagersta Ab
Publication of ZA822203B publication Critical patent/ZA822203B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
ZA822203A 1981-04-24 1982-03-31 An extension coupling for rock drilling equipment ZA822203B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8102626A SE426089B (en) 1981-04-24 1981-04-24 CUTTING COMPOUNDS FOR MOUNTAIN DRILL EQUIPMENT

Publications (1)

Publication Number Publication Date
ZA822203B true ZA822203B (en) 1983-02-23

Family

ID=20343676

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA822203A ZA822203B (en) 1981-04-24 1982-03-31 An extension coupling for rock drilling equipment

Country Status (9)

Country Link
EP (1) EP0077336B1 (en)
AU (1) AU547091B2 (en)
CA (1) CA1178944A (en)
DE (1) DE3264233D1 (en)
FI (1) FI77303C (en)
IE (1) IE52613B1 (en)
SE (1) SE426089B (en)
WO (1) WO1982003653A1 (en)
ZA (1) ZA822203B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2553171B1 (en) * 1983-10-03 1988-04-08 Dril Quip Inc APPARATUS AND METHOD FOR CONNECTING PARTICULARLY CYLINDRICAL ELEMENTS SUCH AS TUBES
SE8600199L (en) * 1986-01-17 1987-07-18 Loevab Loef Och Oestlund Ab Drilling Tools
US5622820A (en) * 1988-03-10 1997-04-22 City Of Hope Method for amplification and detection of RNA and DNA sequences
SE522221C2 (en) 2001-10-12 2004-01-27 Sandvik Ab Striking rock drill joints
JP4954542B2 (en) 2005-12-09 2012-06-20 三菱マテリアル株式会社 Drilling rod, drilling bit and drilling tool
KR20090018055A (en) * 2006-05-17 2009-02-19 산드빅 인터렉츄얼 프로퍼티 에이비 A top hammer rock-drilling tool, a drill rod and coupling sleeve

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2122757A (en) * 1935-07-05 1938-07-05 Hughes Tool Co Drill stem coupling
SE401232B (en) * 1970-05-04 1978-04-24 Sandvik Ab THREADED CONNECTION FOR IMPACT BRUSHES

Also Published As

Publication number Publication date
SE8102626L (en) 1982-10-25
CA1178944A (en) 1984-12-04
FI77303C (en) 1989-02-10
IE52613B1 (en) 1987-12-23
FI824324L (en) 1982-12-16
DE3264233D1 (en) 1985-08-01
AU8275682A (en) 1982-11-04
AU547091B2 (en) 1985-10-03
IE820955L (en) 1982-10-24
FI77303B (en) 1988-10-31
WO1982003653A1 (en) 1982-10-28
EP0077336B1 (en) 1985-06-19
FI824324A0 (en) 1982-12-16
EP0077336A1 (en) 1983-04-27
SE426089B (en) 1982-12-06

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