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
Links
- 238000010276 construction Methods 0.000 claims description 5
- 230000000295 complement effect Effects 0.000 claims description 4
- 238000005553 drilling Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
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)
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 (fr) | 1976-07-28 |
Family
ID=20323494
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO760242A NO760242L (fr) | 1975-01-27 | 1976-01-26 |
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) | FI760182A (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)
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 |
DE19780282B3 (de) * | 1996-03-01 | 2012-09-06 | Tiger 19 Partners, Ltd. | Freitragend ausgebildeter Erweiterungsbohrer |
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 (fr) * | 2003-08-11 | 2005-02-17 | Murray & Roberts Ruc Limited | Trepan a molettes |
Family Cites Families (5)
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 |
-
1975
- 1975-01-27 SE SE7500816A patent/SE415994B/xx not_active IP Right Cessation
-
1976
- 1976-01-19 ZA ZA279A patent/ZA76279B/xx unknown
- 1976-01-21 AU AU10457/76A patent/AU500414B2/en not_active Expired
- 1976-01-22 IT IT19496/76A patent/IT1054471B/it active
- 1976-01-26 GB GB2934/76A patent/GB1488231A/en not_active Expired
- 1976-01-26 FR FR7601988A patent/FR2298679A1/fr not_active Withdrawn
- 1976-01-26 DE DE2602773A patent/DE2602773C3/de not_active Expired
- 1976-01-26 ZM ZM11/76A patent/ZM1176A1/xx unknown
- 1976-01-26 JP JP51007854A patent/JPS5199602A/ja active Pending
- 1976-01-26 CA CA244,239A patent/CA1036151A/fr not_active Expired
- 1976-01-26 NO NO760242A patent/NO760242L/no unknown
- 1976-01-27 FI FI760182A patent/FI760182A/fi not_active Application Discontinuation
- 1976-01-27 US US05/652,864 patent/US4004644A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
IT1054471B (it) | 1981-11-10 |
FR2298679A1 (fr) | 1976-08-20 |
SE7500816L (sv) | 1976-07-28 |
AU1045776A (en) | 1977-07-28 |
ZA76279B (en) | 1977-01-26 |
US4004644A (en) | 1977-01-25 |
GB1488231A (en) | 1977-10-12 |
FI760182A (fr) | 1976-07-28 |
SE415994B (sv) | 1980-11-17 |
DE2602773C3 (de) | 1978-07-13 |
DE2602773B2 (de) | 1977-12-01 |
ZM1176A1 (en) | 1977-08-22 |
AU500414B2 (en) | 1979-05-24 |
JPS5199602A (fr) | 1976-09-02 |
CA1036151A (fr) | 1978-08-08 |
DE2602773A1 (de) | 1976-07-29 |
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