ZM672A1 - Improved large diameter earth boring bit - Google Patents

Improved large diameter earth boring bit

Info

Publication number
ZM672A1
ZM672A1 ZM6/72A ZM672A ZM672A1 ZM 672 A1 ZM672 A1 ZM 672A1 ZM 6/72 A ZM6/72 A ZM 6/72A ZM 672 A ZM672 A ZM 672A ZM 672 A1 ZM672 A1 ZM 672A1
Authority
ZM
Zambia
Prior art keywords
large diameter
earth boring
boring bit
improved large
diameter earth
Prior art date
Application number
ZM6/72A
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 ZM672A1 publication Critical patent/ZM672A1/en

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)
ZM6/72A 1971-01-13 1972-01-11 Improved large diameter earth boring bit ZM672A1 (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
ZM672A1 true ZM672A1 (en) 1972-07-21

Family

ID=22310192

Family Applications (1)

Application Number Title Priority Date Filing Date
ZM6/72A ZM672A1 (en) 1971-01-13 1972-01-11 Improved 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
AU459615B2 (en) 1975-04-10
CA956932A (en) 1974-10-29
US3705635A (en) 1972-12-12
ZA718661B (en) 1972-09-27
AU3760972A (en) 1973-07-12

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