NO791605L - Borkrone. - Google Patents

Borkrone.

Info

Publication number
NO791605L
NO791605L NO791605A NO791605A NO791605L NO 791605 L NO791605 L NO 791605L NO 791605 A NO791605 A NO 791605A NO 791605 A NO791605 A NO 791605A NO 791605 L NO791605 L NO 791605L
Authority
NO
Norway
Prior art keywords
bearing
drill bit
cutting roller
cutting
pin
Prior art date
Application number
NO791605A
Other languages
English (en)
Norwegian (no)
Inventor
Francis Eugene Phelps
Original Assignee
Dresser Ind
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 Dresser Ind filed Critical Dresser Ind
Publication of NO791605L publication Critical patent/NO791605L/no

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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Saccharide Compounds (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
NO791605A 1978-07-24 1979-05-14 Borkrone. NO791605L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92769678A 1978-07-24 1978-07-24

Publications (1)

Publication Number Publication Date
NO791605L true NO791605L (no) 1980-01-25

Family

ID=25455101

Family Applications (1)

Application Number Title Priority Date Filing Date
NO791605A NO791605L (no) 1978-07-24 1979-05-14 Borkrone.

Country Status (10)

Country Link
JP (1) JPS5519400A (it)
CA (1) CA1095505A (it)
DE (1) DE2929568A1 (it)
FR (1) FR2441048A1 (it)
GB (1) GB2026576B (it)
IT (1) IT1117791B (it)
MX (1) MX150790A (it)
NL (1) NL7904731A (it)
NO (1) NO791605L (it)
PL (1) PL120433B1 (it)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE8002813L (sv) * 1980-04-15 1981-10-16 Sandvik Ab Lageranordning vid roterande borrkronor
US7086487B2 (en) * 2002-07-01 2006-08-08 Baker Hughes Incorporated Anti-mud packing seal gland
CN109026009B (zh) * 2018-10-17 2023-11-21 中南大学 一种海底矿产资源富钴结壳的采掘头

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE673486A (it) *
US3384426A (en) * 1965-05-14 1968-05-21 Reed Roller Bit Co Contoured race for roller bearings
FR1459030A (fr) * 1965-08-17 1966-04-29 Hughes Tool Co Système de palier, notamment pour trépans
US3746405A (en) * 1971-11-18 1973-07-17 Globe Oil Tools Co Well drilling bit lubrication and seal
US3890018A (en) * 1974-07-19 1975-06-17 Dresser Ind Rotary rock bit with wiper pad lubrication system
US4061376A (en) * 1976-06-14 1977-12-06 Smith International Inc. Rock bit bearing structure

Also Published As

Publication number Publication date
CA1095505A (en) 1981-02-10
FR2441048A1 (fr) 1980-06-06
PL217220A1 (it) 1980-04-08
IT7949664A0 (it) 1979-07-05
JPS5519400A (en) 1980-02-12
IT1117791B (it) 1986-02-24
NL7904731A (nl) 1980-01-28
DE2929568A1 (de) 1980-02-07
GB2026576A (en) 1980-02-06
MX150790A (es) 1984-07-19
GB2026576B (en) 1982-12-15
PL120433B1 (en) 1982-02-27

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