IT8367449A0 - Perfezionamenti negli scalpelli da roccia - Google Patents

Perfezionamenti negli scalpelli da roccia

Info

Publication number
IT8367449A0
IT8367449A0 IT8367449A IT6744983A IT8367449A0 IT 8367449 A0 IT8367449 A0 IT 8367449A0 IT 8367449 A IT8367449 A IT 8367449A IT 6744983 A IT6744983 A IT 6744983A IT 8367449 A0 IT8367449 A0 IT 8367449A0
Authority
IT
Italy
Prior art keywords
chisels
rock
rock chisels
Prior art date
Application number
IT8367449A
Other languages
English (en)
Inventor
Michael Edward Schramm
Edward Vezirian
Original Assignee
Smith International
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 Smith International filed Critical Smith International
Publication of IT8367449A0 publication Critical patent/IT8367449A0/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/02—Sliding-contact bearings for exclusively rotary movement for radial load only
    • F16C17/03—Sliding-contact bearings for exclusively rotary movement for radial load only with tiltably-supported segments, e.g. Michell bearings
    • 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
    • E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2352/00—Apparatus for drilling

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
IT8367449A 1982-04-23 1983-04-22 Perfezionamenti negli scalpelli da roccia IT8367449A0 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/371,360 US4444518A (en) 1982-04-23 1982-04-23 Rock bit cone retention means

Publications (1)

Publication Number Publication Date
IT8367449A0 true IT8367449A0 (it) 1983-04-22

Family

ID=23463656

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8367449A IT8367449A0 (it) 1982-04-23 1983-04-22 Perfezionamenti negli scalpelli da roccia

Country Status (5)

Country Link
US (1) US4444518A (it)
BR (1) BR8302148A (it)
CA (1) CA1195318A (it)
IT (1) IT8367449A0 (it)
MX (1) MX158035A (it)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4511008A (en) * 1984-01-06 1985-04-16 Dresser Industries, Inc. Rotary cutter drill bit with permanent snap ring cutter retention
US4538928A (en) * 1984-07-09 1985-09-03 Smith International, Inc. Screw ring cone retention apparatus and method for rock bits
DE3535617A1 (de) * 1985-10-05 1987-04-09 Glyco Metall Werke Geteiltes gleitlager, insbesondere pleuellager, fuer mittel- und grossmotorer
US4666000A (en) * 1986-01-15 1987-05-19 Varel Manufacturing Co. Rock bit cutter retainer
US4722615A (en) * 1986-04-14 1988-02-02 A-Z International Tool Company Drilling apparatus and cutter therefor
US4865137A (en) * 1986-08-13 1989-09-12 Drilex Systems, Inc. Drilling apparatus and cutter
GB2197915B (en) * 1986-11-19 1990-11-14 Rolls Royce Plc Improvements in or relating to fluid bearings
JPH01131782A (ja) * 1987-11-17 1989-05-24 Tsukamoto Seiki Kk ロータリードリリングビットにおけるカッターの軸方向結合保持装置
US6053264A (en) * 1997-05-15 2000-04-25 Sunrise Enterprises, Llc Cutter head mounting for drill bit
US20080006447A1 (en) * 2006-07-07 2008-01-10 Walter Scott Dillard Roller cone drill bit that includes components with planar reference surfaces for gauging and inspection
US8201646B2 (en) * 2009-11-20 2012-06-19 Edward Vezirian Method and apparatus for a true geometry, durable rotating drill bit

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1634318A (en) * 1927-03-28 1927-07-05 Reed Roller Bit Co Roller-cutter mounting
US1865706A (en) * 1929-06-11 1932-07-05 Chicago Pneumatic Tool Co Earth boring drill
US1839589A (en) * 1929-06-14 1932-01-05 Chicago Pneumatic Tool Co Roller cutter organization for earth boring drills
US1835523A (en) * 1929-08-17 1931-12-08 Chicago Pneumatic Tool Co Earth boring drill
US2664321A (en) * 1950-09-14 1953-12-29 Reed Roller Bit Co Roller bit

Also Published As

Publication number Publication date
US4444518A (en) 1984-04-24
CA1195318A (en) 1985-10-15
MX158035A (es) 1988-12-29
BR8302148A (pt) 1983-12-27

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