GB1228965A - - Google Patents

Info

Publication number
GB1228965A
GB1228965A GB1228965DA GB1228965A GB 1228965 A GB1228965 A GB 1228965A GB 1228965D A GB1228965D A GB 1228965DA GB 1228965 A GB1228965 A GB 1228965A
Authority
GB
United Kingdom
Prior art keywords
shaft
ring
lubricant
pressure
thickness
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
Application number
Other languages
English (en)
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 filed Critical
Publication of GB1228965A publication Critical patent/GB1228965A/en
Expired 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling And Boring (AREA)
GB1228965D 1968-07-05 1968-07-05 Expired GB1228965A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3228768 1968-07-05

Publications (1)

Publication Number Publication Date
GB1228965A true GB1228965A (enrdf_load_stackoverflow) 1971-04-21

Family

ID=10336264

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228965D Expired GB1228965A (enrdf_load_stackoverflow) 1968-07-05 1968-07-05

Country Status (1)

Country Link
GB (1) GB1228965A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040845A3 (en) * 1980-05-27 1982-09-01 Eduardo Barnetche Gonzalez A self compensating seal apparatus
US4554985A (en) * 1984-01-03 1985-11-26 Santrade Limited Rotary drill bit
GB2271794A (en) * 1992-10-21 1994-04-27 Smith International Composite seal for rotary cone rock bits

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0040845A3 (en) * 1980-05-27 1982-09-01 Eduardo Barnetche Gonzalez A self compensating seal apparatus
US4554985A (en) * 1984-01-03 1985-11-26 Santrade Limited Rotary drill bit
GB2271794A (en) * 1992-10-21 1994-04-27 Smith International Composite seal for rotary cone rock bits
GB2271794B (en) * 1992-10-21 1996-06-05 Smith International Composite seal for rotary cone rock bits

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Legal Events

Date Code Title Description
PS Patent sealed
PLE Entries relating assignments, transmissions, licences in the register of patents
PE20 Patent expired after termination of 20 years