SE9703661D0 - Axeltätning för roterbar borrkrona samt med sådan axeltätning försedd borrkrona - Google Patents

Axeltätning för roterbar borrkrona samt med sådan axeltätning försedd borrkrona

Info

Publication number
SE9703661D0
SE9703661D0 SE9703661A SE9703661A SE9703661D0 SE 9703661 D0 SE9703661 D0 SE 9703661D0 SE 9703661 A SE9703661 A SE 9703661A SE 9703661 A SE9703661 A SE 9703661A SE 9703661 D0 SE9703661 D0 SE 9703661D0
Authority
SE
Sweden
Prior art keywords
drill bit
shaft seal
lubricant additives
rotatable
ring seals
Prior art date
Application number
SE9703661A
Other languages
English (en)
Inventor
Zhigang Fang
Steven W Peterson
Robert Denton
Original Assignee
Smith International
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 Smith International filed Critical Smith International
Publication of SE9703661D0 publication Critical patent/SE9703661D0/sv

Links

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Sealing (AREA)
  • Sealing Devices (AREA)
  • Sealing Material Composition (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Earth Drilling (AREA)
  • Lubricants (AREA)
SE9703661A 1996-10-08 1997-10-08 Axeltätning för roterbar borrkrona samt med sådan axeltätning försedd borrkrona SE9703661D0 (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US2795096P 1996-10-08 1996-10-08

Publications (1)

Publication Number Publication Date
SE9703661D0 true SE9703661D0 (sv) 1997-10-08

Family

ID=21840722

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9703661A SE9703661D0 (sv) 1996-10-08 1997-10-08 Axeltätning för roterbar borrkrona samt med sådan axeltätning försedd borrkrona

Country Status (4)

Country Link
AU (1) AU695451B2 (sv)
CA (1) CA2217751C (sv)
GB (1) GB2318139B (sv)
SE (1) SE9703661D0 (sv)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765495A (en) * 1972-08-02 1973-10-16 G W Murphey Ind Inc Drill bit seals
US5362073A (en) * 1992-10-21 1994-11-08 Smith International, Inc. Composite seal for rotary cone rock bits
US5456327A (en) * 1994-03-08 1995-10-10 Smith International, Inc. O-ring seal for rock bit bearings
US5402858A (en) * 1994-03-11 1995-04-04 Smith International, Inc. O-ring seal for rock bit bearings

Also Published As

Publication number Publication date
GB2318139A (en) 1998-04-15
GB2318139B (en) 2000-12-13
AU3998897A (en) 1998-04-23
GB9721257D0 (en) 1997-12-03
CA2217751A1 (en) 1998-04-08
AU695451B2 (en) 1998-08-13
CA2217751C (en) 2004-06-29

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