NO760242L - - Google Patents

Info

Publication number
NO760242L
NO760242L NO760242A NO760242A NO760242L NO 760242 L NO760242 L NO 760242L NO 760242 A NO760242 A NO 760242A NO 760242 A NO760242 A NO 760242A NO 760242 L NO760242 L NO 760242L
Authority
NO
Norway
Prior art keywords
shaft
legs
recess
bore
bores
Prior art date
Application number
NO760242A
Other languages
English (en)
Norwegian (no)
Inventor
B S Liljekvist
A Persson
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
Publication of NO760242L publication Critical patent/NO760242L/no

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
    • E21B10/08—Roller bits
    • E21B10/10—Roller bits with roller axle supported at both ends
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
    • 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)
  • Excavating Of Shafts Or Tunnels (AREA)
NO760242A 1975-01-27 1976-01-26 NO760242L (show.php)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7500816A SE415994B (sv) 1975-01-27 1975-01-27 Anordning vid rullborrkronor

Publications (1)

Publication Number Publication Date
NO760242L true NO760242L (show.php) 1976-07-28

Family

ID=20323494

Family Applications (1)

Application Number Title Priority Date Filing Date
NO760242A NO760242L (show.php) 1975-01-27 1976-01-26

Country Status (13)

Country Link
US (1) US4004644A (show.php)
JP (1) JPS5199602A (show.php)
AU (1) AU500414B2 (show.php)
CA (1) CA1036151A (show.php)
DE (1) DE2602773C3 (show.php)
FI (1) FI760182A7 (show.php)
FR (1) FR2298679A1 (show.php)
GB (1) GB1488231A (show.php)
IT (1) IT1054471B (show.php)
NO (1) NO760242L (show.php)
SE (1) SE415994B (show.php)
ZA (1) ZA76279B (show.php)
ZM (1) ZM1176A1 (show.php)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4359114A (en) * 1980-12-10 1982-11-16 Robbins Machine, Inc. Raise drill bit inboard cutter assembly
SE440678B (sv) * 1981-03-31 1985-08-12 Sandvik Ab Festanordning for skerrulle vid borrhuvud for roterande borrning
US5423614A (en) * 1992-06-26 1995-06-13 Vooner Vacuum Pumps, Inc. Self aligning removable bearing carrier for a liquid ring vacuum pump
US5328274A (en) * 1992-06-26 1994-07-12 Vooner Vacuum Pumps, Inc. Liquid ring vacuum pump-compressor with self aligning removable bearing bracket
US5487435A (en) * 1994-07-07 1996-01-30 Baker Hughes Incorporated Mounting system for raise and shaft cutters
GB2314869B (en) * 1996-03-01 2000-08-16 Allen Kent Rives Cantilevered hole opener
US6708786B2 (en) * 2001-05-08 2004-03-23 Smith International, Inc. Mounting attachment and bearing system for an industrial earth-boring cutter
AU782643B2 (en) * 2001-05-08 2005-08-18 Sandvik Intellectual Property Ab Mounting attachment and bearing system for an industrial earth-boring cutter
WO2005014968A1 (en) * 2003-08-11 2005-02-17 Murray & Roberts Ruc Limited Roller cutter

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3054466A (en) * 1959-09-21 1962-09-18 Drilprodco Inc Roller assemblies
US3612196A (en) * 1970-05-01 1971-10-12 Smith International Rock-boring cutter
US3749188A (en) * 1971-08-20 1973-07-31 G W Murphy Indu Inc Drill bit
US3747999A (en) * 1972-02-09 1973-07-24 Murphy Ind Inc G W Rotary cutter for earth boring bits
US3835944A (en) * 1973-06-12 1974-09-17 Hard Metals Ltd Cutting unit for use on rock boring machines

Also Published As

Publication number Publication date
DE2602773B2 (de) 1977-12-01
DE2602773A1 (de) 1976-07-29
DE2602773C3 (de) 1978-07-13
US4004644A (en) 1977-01-25
FI760182A7 (show.php) 1976-07-28
CA1036151A (en) 1978-08-08
GB1488231A (en) 1977-10-12
ZA76279B (en) 1977-01-26
AU1045776A (en) 1977-07-28
IT1054471B (it) 1981-11-10
SE7500816L (sv) 1976-07-28
AU500414B2 (en) 1979-05-24
SE415994B (sv) 1980-11-17
JPS5199602A (show.php) 1976-09-02
ZM1176A1 (en) 1977-08-22
FR2298679A1 (fr) 1976-08-20

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