FI760182A7 - - Google Patents

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Info

Publication number
FI760182A7
FI760182A7 FI760182A FI760182A FI760182A7 FI 760182 A7 FI760182 A7 FI 760182A7 FI 760182 A FI760182 A FI 760182A FI 760182 A FI760182 A FI 760182A FI 760182 A7 FI760182 A7 FI 760182A7
Authority
FI
Finland
Application number
FI760182A
Other languages
Finnish (fi)
Inventor
Bernt Soeren Liljekvist
Anders 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 FI760182A7 publication Critical patent/FI760182A7/fi

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)
FI760182A 1975-01-27 1976-01-27 FI760182A7 (fr)

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
FI760182A7 true FI760182A7 (fr) 1976-07-28

Family

ID=20323494

Family Applications (1)

Application Number Title Priority Date Filing Date
FI760182A FI760182A7 (fr) 1975-01-27 1976-01-27

Country Status (13)

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

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
US5328274A (en) * 1992-06-26 1994-07-12 Vooner Vacuum Pumps, Inc. Liquid ring vacuum pump-compressor with self aligning removable bearing bracket
US5423614A (en) * 1992-06-26 1995-06-13 Vooner Vacuum Pumps, Inc. Self aligning removable bearing carrier for a liquid ring vacuum pump
US5487435A (en) * 1994-07-07 1996-01-30 Baker Hughes Incorporated Mounting system for raise and shaft cutters
CA2219985C (fr) * 1996-03-01 2005-04-19 Allen Kent Rives Elargisseur de trous monte en porte a faux
AU782643B2 (en) * 2001-05-08 2005-08-18 Sandvik Intellectual Property Ab Mounting attachment and bearing system for an industrial earth-boring cutter
US6708786B2 (en) * 2001-05-08 2004-03-23 Smith International, Inc. Mounting attachment and bearing system for an industrial earth-boring cutter
WO2005014968A1 (fr) * 2003-08-11 2005-02-17 Murray & Roberts Ruc Limited Trepan a molettes

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
IT1054471B (it) 1981-11-10
SE7500816L (sv) 1976-07-28
NO760242L (fr) 1976-07-28
DE2602773C3 (de) 1978-07-13
FR2298679A1 (fr) 1976-08-20
DE2602773A1 (de) 1976-07-29
CA1036151A (fr) 1978-08-08
JPS5199602A (fr) 1976-09-02
ZM1176A1 (en) 1977-08-22
DE2602773B2 (de) 1977-12-01
AU500414B2 (en) 1979-05-24
ZA76279B (en) 1977-01-26
US4004644A (en) 1977-01-25
SE415994B (sv) 1980-11-17
GB1488231A (en) 1977-10-12
AU1045776A (en) 1977-07-28

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Legal Events

Date Code Title Description
FD Application lapsed

Owner name: SANDVIK AB