NO129542B - - Google Patents

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Info

Publication number
NO129542B
NO129542B NO03898/71A NO389871A NO129542B NO 129542 B NO129542 B NO 129542B NO 03898/71 A NO03898/71 A NO 03898/71A NO 389871 A NO389871 A NO 389871A NO 129542 B NO129542 B NO 129542B
Authority
NO
Norway
Prior art keywords
bearing
bearing pin
support arms
stem
pin
Prior art date
Application number
NO03898/71A
Other languages
English (en)
Norwegian (no)
Inventor
Von Crow M Le
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 NO129542B publication Critical patent/NO129542B/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
    • E21B10/10—Roller bits with roller axle supported at both ends
    • 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)
  • 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)
  • Earth Drilling (AREA)
NO03898/71A 1970-11-05 1971-10-20 NO129542B (fi)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US8713470A 1970-11-05 1970-11-05

Publications (1)

Publication Number Publication Date
NO129542B true NO129542B (fi) 1974-04-22

Family

ID=22203326

Family Applications (1)

Application Number Title Priority Date Filing Date
NO03898/71A NO129542B (fi) 1970-11-05 1971-10-20

Country Status (9)

Country Link
US (1) US3705750A (fi)
AU (1) AU459870B2 (fi)
CA (1) CA967553A (fi)
DE (1) DE2155304A1 (fi)
FI (1) FI56254C (fi)
NO (1) NO129542B (fi)
SE (1) SE388658B (fi)
ZA (1) ZA716953B (fi)
ZM (1) ZM15271A1 (fi)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3835944A (en) * 1973-06-12 1974-09-17 Hard Metals Ltd Cutting unit for use on rock boring machines
US4089382A (en) * 1977-04-04 1978-05-16 Hughes Tool Company Cutter mounting for a large hole earth boring bit
US4226291A (en) * 1979-02-13 1980-10-07 Spelts William R Reamer stabilizer for rock drills
US5295735A (en) * 1992-06-10 1994-03-22 Cobbs David C Rock saw
WO2011046960A2 (en) * 2009-10-12 2011-04-21 Atlas Copco Secoroc Llc Downhole tool
US10371480B1 (en) * 2016-06-03 2019-08-06 Dorge O. Huang Retention of a large diameter axle on an archery bow limb

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1768577A (en) * 1927-08-22 1930-07-01 Reed Roller Bit Co Drill-cutter mounting
US1791767A (en) * 1927-08-23 1931-02-10 Reed Roller Bit Co Roller bit
US1848404A (en) * 1929-09-18 1932-03-08 Reinhold B Reamer
US3054466A (en) * 1959-09-21 1962-09-18 Drilprodco Inc Roller assemblies
US3203492A (en) * 1963-01-14 1965-08-31 Dresser Ind Large hole earth boring drill bit
AU4834168A (en) * 1968-12-24 1970-06-25 Koken Sibul Kogyo Kabushikikaisha Abig hole drilling bit

Also Published As

Publication number Publication date
AU459870B2 (en) 1975-04-10
ZM15271A1 (en) 1972-07-21
SE388658B (sv) 1976-10-11
ZA716953B (en) 1972-07-26
CA967553A (en) 1975-05-13
FI56254B (fi) 1979-08-31
US3705750A (en) 1972-12-12
AU3486571A (en) 1973-05-03
DE2155304A1 (de) 1972-05-10
FI56254C (fi) 1979-12-10

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