AU3273684A - Two prong rotary bit - Google Patents

Two prong rotary bit

Info

Publication number
AU3273684A
AU3273684A AU32736/84A AU3273684A AU3273684A AU 3273684 A AU3273684 A AU 3273684A AU 32736/84 A AU32736/84 A AU 32736/84A AU 3273684 A AU3273684 A AU 3273684A AU 3273684 A AU3273684 A AU 3273684A
Authority
AU
Australia
Prior art keywords
rotary bit
prong
prong rotary
bit
rotary
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.)
Granted
Application number
AU32736/84A
Other versions
AU571262B2 (en
Inventor
Edmund Isakov
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.)
Kennametal Inc
Original Assignee
Kennametal 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 Kennametal Inc filed Critical Kennametal Inc
Publication of AU3273684A publication Critical patent/AU3273684A/en
Application granted granted Critical
Publication of AU571262B2 publication Critical patent/AU571262B2/en
Anticipated expiration legal-status Critical
Ceased 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades
    • 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
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • 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
    • E21B10/58—Chisel-type inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
AU32736/84A 1983-10-03 1984-09-05 Two prong rotary bit Ceased AU571262B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53876583A 1983-10-03 1983-10-03
US538765 1995-08-07

Publications (2)

Publication Number Publication Date
AU3273684A true AU3273684A (en) 1985-04-18
AU571262B2 AU571262B2 (en) 1988-04-14

Family

ID=24148333

Family Applications (1)

Application Number Title Priority Date Filing Date
AU32736/84A Ceased AU571262B2 (en) 1983-10-03 1984-09-05 Two prong rotary bit

Country Status (5)

Country Link
AU (1) AU571262B2 (en)
CA (1) CA1220059A (en)
DE (1) DE3436128C2 (en)
GB (1) GB2149329B (en)
ZA (1) ZA846838B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5180022A (en) * 1991-05-23 1993-01-19 Brady William J Rotary mining tools
DE4134425A1 (en) * 1991-10-18 1993-04-22 Boart Hwf Gmbh Co Kg Rotary drilling head with cutter supports - has hard metal cutters welded to twin holders and supported at back and underneath
AU717071B1 (en) * 1999-10-29 2000-03-16 Sandvik Intellectual Property Ab Self drilling roof bolt
US6637521B2 (en) * 2001-07-11 2003-10-28 Hilti Aktiengesellschaft Earth borer
DE102006000085B3 (en) * 2006-02-21 2007-10-11 Hilti Ag wellhead

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1050116A (en) *
US1858988A (en) * 1928-04-23 1932-05-17 Reed Roller Bit Co Drill bit
DE612147C (en) * 1930-08-29 1935-04-13 Gewerkschaft Wallram Rock drill
GB669636A (en) * 1947-07-04 1952-04-09 Louis Camille Andre Gardelle Improvements in or relating to rock drills
GB685967A (en) * 1950-12-02 1953-01-14 Jessop William & Sons Ltd Improvements in or relating to rotary bits for coal and like drilling
GB705020A (en) * 1952-04-28 1954-03-03 Cons Pneumatic Tool Company Lt Improvements relating to rotary bits for wet drilling coal and other hard substances
GB736982A (en) * 1952-10-25 1955-09-14 Howard & Dennis Ltd Improvements in cutters for mowing and like machines
GB822029A (en) * 1956-03-15 1959-10-21 Coal Industry Patents Ltd Improvements in or relating to scroll-type drilling tools
AT223151B (en) * 1960-08-16 1962-09-10 Hard Metals Ltd Rotary cutting tool
FR2194512B3 (en) * 1972-07-27 1976-07-09 Tarmac Engineering Ltd
DE2718920A1 (en) * 1977-04-28 1978-11-09 Wallram Hartmetall Gmbh Stone cutting head with three radial cutting inserts - has hard metal plate shaped inserts with convex cutting faces
ZA782286B (en) * 1978-04-21 1979-10-31 Christensen Inc Abrasive bodies
FR2479825A1 (en) * 1980-04-04 1981-10-09 Fabre Sa Pierre BENZODIOXAN 1,4 METHOXY-2 PROPANOLAMINES, THEIR PREPARATION AND THEIR USE AS MEDICAMENTS
DE8107329U1 (en) * 1980-05-08 1981-08-13 Marwin Cutting Tools Ltd., Rothley, Leicestershire "MACHINE CUTTING TOOL"

Also Published As

Publication number Publication date
DE3436128C2 (en) 1986-08-14
CA1220059A (en) 1987-04-07
AU571262B2 (en) 1988-04-14
DE3436128A1 (en) 1985-04-25
GB2149329A (en) 1985-06-12
ZA846838B (en) 1985-04-24
GB2149329B (en) 1987-10-21
GB8421443D0 (en) 1984-09-26

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