NO941375D0 - Borkrone - Google Patents
BorkroneInfo
- Publication number
- NO941375D0 NO941375D0 NO941375A NO941375A NO941375D0 NO 941375 D0 NO941375 D0 NO 941375D0 NO 941375 A NO941375 A NO 941375A NO 941375 A NO941375 A NO 941375A NO 941375 D0 NO941375 D0 NO 941375D0
- Authority
- NO
- Norway
- Prior art keywords
- drill bit
- drill
- bit
- Prior art date
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
- E21B10/22—Roller bits characterised by bearing, lubrication or sealing details
- E21B10/25—Roller bits characterised by bearing, lubrication or sealing details characterised by sealing details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
- F16J15/34—Sealings between relatively-moving surfaces with slip-ring pressed against a more or less radial face on one member
- F16J15/3436—Pressing means
- F16J15/344—Pressing means the pressing force being applied by means of an elastic ring supporting the slip-ring
Landscapes
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US4886393A | 1993-04-16 | 1993-04-16 |
Publications (2)
Publication Number | Publication Date |
---|---|
NO941375D0 true NO941375D0 (no) | 1994-04-15 |
NO941375L NO941375L (no) | 1994-10-17 |
Family
ID=21956860
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO941375A NO941375L (no) | 1993-04-16 | 1994-04-15 | Borkrone |
Country Status (3)
Country | Link |
---|---|
GB (1) | GB2278865B (no) |
IT (1) | IT1274260B (no) |
NO (1) | NO941375L (no) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5472058A (en) * | 1994-04-20 | 1995-12-05 | Smith International, Inc. | Rock bit with mechanical seal |
GB9411228D0 (en) * | 1994-06-04 | 1994-07-27 | Camco Drilling Group Ltd | A modulated bias unit for rotary drilling |
US5791421A (en) * | 1996-08-06 | 1998-08-11 | Baker Hughes Incorporated | Optimal material pair for metal face seal in earth-boring bits |
US6684966B2 (en) * | 2001-10-18 | 2004-02-03 | Baker Hughes Incorporated | PCD face seal for earth-boring bit |
US7234541B2 (en) * | 2002-08-19 | 2007-06-26 | Baker Hughes Incorporated | DLC coating for earth-boring bit seal ring |
EP2140095A2 (en) * | 2007-04-17 | 2010-01-06 | Baker Hughes Incorporated | Elastomer material for high temperature roller cone bits |
CN101806195A (zh) | 2010-03-09 | 2010-08-18 | 江汉石油钻头股份有限公司 | 一种用于高转速钻井的三牙轮钻头 |
DE202018100532U1 (de) * | 2018-01-31 | 2018-03-09 | Schöning Gmbh | Vorrichtung für Offshore-Arbeiten mit einem Getriebemotor |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE68905949T2 (de) * | 1988-03-31 | 1993-07-22 | Smith International | Metallische dichtung fuer gesteinsbohrmeissel. |
-
1994
- 1994-04-14 GB GB9407359A patent/GB2278865B/en not_active Expired - Fee Related
- 1994-04-15 IT ITTO940301A patent/IT1274260B/it active IP Right Grant
- 1994-04-15 NO NO941375A patent/NO941375L/no unknown
Also Published As
Publication number | Publication date |
---|---|
ITTO940301A0 (it) | 1994-04-15 |
NO941375L (no) | 1994-10-17 |
ITTO940301A1 (it) | 1995-10-15 |
GB2278865B (en) | 1996-06-26 |
GB2278865A (en) | 1994-12-14 |
GB9407359D0 (en) | 1994-06-08 |
IT1274260B (it) | 1997-07-17 |
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