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BR8401280A - ROTARY TREPANE - Google Patents

ROTARY TREPANE

Info

Publication number
BR8401280A
BR8401280A BR8401280A BR8401280A BR8401280A BR 8401280 A BR8401280 A BR 8401280A BR 8401280 A BR8401280 A BR 8401280A BR 8401280 A BR8401280 A BR 8401280A BR 8401280 A BR8401280 A BR 8401280A
Authority
BR
Brazil
Prior art keywords
trepane
rotary
rotary trepane
Prior art date
Application number
BR8401280A
Other languages
Portuguese (pt)
Inventor
Alexander K Meskin
Clifford R Pay
Original Assignee
Christensen Inc Norton
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 Christensen Inc Norton filed Critical Christensen Inc Norton
Publication of BR8401280A publication Critical patent/BR8401280A/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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
BR8401280A 1983-03-21 1984-03-20 ROTARY TREPANE BR8401280A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47706883A 1983-03-21 1983-03-21

Publications (1)

Publication Number Publication Date
BR8401280A true BR8401280A (en) 1984-10-30

Family

ID=23894393

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8401280A BR8401280A (en) 1983-03-21 1984-03-20 ROTARY TREPANE

Country Status (7)

Country Link
EP (1) EP0119620B1 (en)
JP (1) JPS6016692A (en)
AU (1) AU2568884A (en)
BR (1) BR8401280A (en)
CA (1) CA1218355A (en)
DE (1) DE3481435D1 (en)
ZA (1) ZA842109B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN86100885A (en) * 1985-01-25 1986-08-20 诺顿-克里斯坦森公司 A kind of improved groove chipping type bit
US4673044A (en) * 1985-08-02 1987-06-16 Eastman Christensen Co. Earth boring bit for soft to hard formations
GB2188354B (en) * 1986-03-27 1989-11-22 Shell Int Research Rotary drill bit
US8485283B2 (en) 2007-09-05 2013-07-16 Groupe Fordia Inc. Drill bit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5382601A (en) * 1976-12-28 1978-07-21 Tokiwa Kogyo Kk Rotary grinding type excavation drill head
US4351401A (en) * 1978-06-08 1982-09-28 Christensen, Inc. Earth-boring drill bits
US4373593A (en) * 1979-03-16 1983-02-15 Christensen, Inc. Drill bit
DE3114749C2 (en) * 1981-04-11 1983-10-27 Christensen, Inc., 84115 Salt Lake City, Utah Wedge-shaped cutting link for rotary drill bits for deep drilling
US4529047A (en) * 1983-02-24 1985-07-16 Norton Christensen, Inc. Cutting tooth and a rotating bit having a fully exposed polycrystalline diamond element

Also Published As

Publication number Publication date
CA1218355A (en) 1987-02-24
EP0119620B1 (en) 1990-02-28
DE3481435D1 (en) 1990-04-05
EP0119620A3 (en) 1986-02-12
JPS6016692A (en) 1985-01-28
EP0119620A2 (en) 1984-09-26
ZA842109B (en) 1984-11-28
AU2568884A (en) 1984-09-27

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