AU3998897A - 0-ring seal with lubricant additives for rock bits bearings - Google Patents

0-ring seal with lubricant additives for rock bits bearings

Info

Publication number
AU3998897A
AU3998897A AU39988/97A AU3998897A AU3998897A AU 3998897 A AU3998897 A AU 3998897A AU 39988/97 A AU39988/97 A AU 39988/97A AU 3998897 A AU3998897 A AU 3998897A AU 3998897 A AU3998897 A AU 3998897A
Authority
AU
Australia
Prior art keywords
bearings
ring seal
lubricant additives
rock bits
rock
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
AU39988/97A
Other versions
AU695451B2 (en
Inventor
Robert Denton
Zhigang Fang
Steven W. Peterson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Smith International Inc
Original Assignee
Smith International Inc
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 Inc filed Critical Smith International Inc
Publication of AU3998897A publication Critical patent/AU3998897A/en
Application granted granted Critical
Publication of AU695451B2 publication Critical patent/AU695451B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • F16J15/02—Sealings between relatively-stationary surfaces
    • F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
    • F16J15/064—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces the packing combining the sealing function with other functions
    • 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
    • F16J15/32—Sealings between relatively-moving surfaces with elastic sealings, e.g. O-rings

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)
AU39988/97A 1996-10-08 1997-10-08 0-ring seal with lubricant additives for rock bits bearings Ceased AU695451B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US2795096P 1996-10-08 1996-10-08
US60027950 1996-10-08

Publications (2)

Publication Number Publication Date
AU3998897A true AU3998897A (en) 1998-04-23
AU695451B2 AU695451B2 (en) 1998-08-13

Family

ID=21840722

Family Applications (1)

Application Number Title Priority Date Filing Date
AU39988/97A Ceased AU695451B2 (en) 1996-10-08 1997-10-08 0-ring seal with lubricant additives for rock bits bearings

Country Status (4)

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

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
SE9703661D0 (en) 1997-10-08
GB9721257D0 (en) 1997-12-03
CA2217751A1 (en) 1998-04-08
AU695451B2 (en) 1998-08-13
CA2217751C (en) 2004-06-29

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Legal Events

Date Code Title Description
MK14 Patent ceased section 143(a) (annual fees not paid) or expired