GB2318139B - O-ring seal with lubricant additives for rock bit bearings - Google Patents

O-ring seal with lubricant additives for rock bit bearings

Info

Publication number
GB2318139B
GB2318139B GB9721257A GB9721257A GB2318139B GB 2318139 B GB2318139 B GB 2318139B GB 9721257 A GB9721257 A GB 9721257A GB 9721257 A GB9721257 A GB 9721257A GB 2318139 B GB2318139 B GB 2318139B
Authority
GB
United Kingdom
Prior art keywords
ring seal
rock bit
lubricant additives
bit bearings
bearings
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.)
Expired - Fee Related
Application number
GB9721257A
Other languages
English (en)
Other versions
GB2318139A (en
GB9721257D0 (en
Inventor
Zhigang Fang
Steve Peterson
Robert Denton
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 GB9721257D0 publication Critical patent/GB9721257D0/en
Publication of GB2318139A publication Critical patent/GB2318139A/en
Application granted granted Critical
Publication of GB2318139B publication Critical patent/GB2318139B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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)
  • Lubricants (AREA)
  • Earth Drilling (AREA)
  • Sealing Material Composition (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
GB9721257A 1996-10-08 1997-10-08 O-ring seal with lubricant additives for rock bit bearings Expired - Fee Related GB2318139B (en)

Applications Claiming Priority (1)

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

Publications (3)

Publication Number Publication Date
GB9721257D0 GB9721257D0 (en) 1997-12-03
GB2318139A GB2318139A (en) 1998-04-15
GB2318139B true GB2318139B (en) 2000-12-13

Family

ID=21840722

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9721257A Expired - Fee Related GB2318139B (en) 1996-10-08 1997-10-08 O-ring seal with lubricant additives for rock bit bearings

Country Status (4)

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

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5402858A (en) * 1994-03-11 1995-04-04 Smith International, Inc. O-ring seal for rock bit bearings
US5456327A (en) * 1994-03-08 1995-10-10 Smith International, Inc. O-ring seal for rock bit bearings

Family Cites Families (2)

* 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

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
AU3998897A (en) 1998-04-23
SE9703661D0 (sv) 1997-10-08
AU695451B2 (en) 1998-08-13
CA2217751C (fr) 2004-06-29
CA2217751A1 (fr) 1998-04-08
GB2318139A (en) 1998-04-15
GB9721257D0 (en) 1997-12-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20151008