CA956932A - Large diameter earth boring bit - Google Patents

Large diameter earth boring bit

Info

Publication number
CA956932A
CA956932A CA130,557A CA130557A CA956932A CA 956932 A CA956932 A CA 956932A CA 130557 A CA130557 A CA 130557A CA 956932 A CA956932 A CA 956932A
Authority
CA
Canada
Prior art keywords
large diameter
earth boring
boring bit
diameter earth
bit
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
CA130,557A
Inventor
William M. Conn
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.)
Dresser Industries Inc
Original Assignee
Dresser Industries 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 Dresser Industries Inc filed Critical Dresser Industries Inc
Application granted granted Critical
Publication of CA956932A publication Critical patent/CA956932A/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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/28—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with non-expansible roller cutters
    • 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)
CA130,557A 1971-01-13 1971-12-20 Large diameter earth boring bit Expired CA956932A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10622071A 1971-01-13 1971-01-13

Publications (1)

Publication Number Publication Date
CA956932A true CA956932A (en) 1974-10-29

Family

ID=22310192

Family Applications (1)

Application Number Title Priority Date Filing Date
CA130,557A Expired CA956932A (en) 1971-01-13 1971-12-20 Large diameter earth boring bit

Country Status (5)

Country Link
US (1) US3705635A (en)
AU (1) AU459615B2 (en)
CA (1) CA956932A (en)
ZA (1) ZA718661B (en)
ZM (1) ZM672A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3921734A (en) * 1972-10-17 1975-11-25 Kennametal Inc Raise boring head and rolling cutter arrangement therefor
US3851718A (en) * 1972-11-09 1974-12-03 Jarva Inc Roller cutter
US3835944A (en) * 1973-06-12 1974-09-17 Hard Metals Ltd Cutting unit for use on rock boring machines
US4046206A (en) * 1976-04-14 1977-09-06 Dresser Industries, Inc. Locking apparatus for earth boring cutter or stabilizer
US4036314A (en) * 1976-06-28 1977-07-19 Smith International, Inc. Hole opener with improved rotary cutter mounting
US4760890A (en) * 1987-05-18 1988-08-02 Tamrock Inc. Cutter assembly for rotary boring of earth
US5295735A (en) * 1992-06-10 1994-03-22 Cobbs David C Rock saw
CN103147693B (en) * 2013-03-22 2015-10-28 四川圆通建设有限公司 Whether a kind of identifiable design uses the quick reamer reclaiming gear wheel
USD934056S1 (en) * 2017-11-21 2021-10-26 Iron Grip Holdings Pty Limited Stabilisation ring segment for an underground reamer

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1879034A (en) * 1929-10-08 1932-09-27 Reed Roller Bit Co Drill cutter mounting
US2049047A (en) * 1935-04-04 1936-07-28 I G S Devices Corp Drill head
US2187037A (en) * 1939-06-09 1940-01-16 Lafayette H Kirkpatrick Well tool or the like
US3612196A (en) * 1970-05-01 1971-10-12 Smith International Rock-boring cutter

Also Published As

Publication number Publication date
US3705635A (en) 1972-12-12
AU3760972A (en) 1973-07-12
ZM672A1 (en) 1972-07-21
AU459615B2 (en) 1975-04-10
ZA718661B (en) 1972-09-27

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