ZA742078B - Excavating tool - Google Patents

Excavating tool

Info

Publication number
ZA742078B
ZA742078B ZA00742078A ZA742078A ZA742078B ZA 742078 B ZA742078 B ZA 742078B ZA 00742078 A ZA00742078 A ZA 00742078A ZA 742078 A ZA742078 A ZA 742078A ZA 742078 B ZA742078 B ZA 742078B
Authority
ZA
South Africa
Prior art keywords
excavating tool
excavating
tool
Prior art date
Application number
ZA00742078A
Inventor
D Johnstone
J Kita
Original Assignee
Kennemetal 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 Kennemetal Inc filed Critical Kennemetal Inc
Publication of ZA742078B publication Critical patent/ZA742078B/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

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)
ZA00742078A 1973-04-23 1974-04-02 Excavating tool ZA742078B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US353357A US3858671A (en) 1973-04-23 1973-04-23 Excavating tool

Publications (1)

Publication Number Publication Date
ZA742078B true ZA742078B (en) 1975-03-26

Family

ID=23388761

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00742078A ZA742078B (en) 1973-04-23 1974-04-02 Excavating tool

Country Status (6)

Country Link
US (1) US3858671A (en)
JP (1) JPS5435561B2 (en)
CA (1) CA981248A (en)
DE (1) DE2417600B2 (en)
GB (1) GB1443092A (en)
ZA (1) ZA742078B (en)

Families Citing this family (40)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069880A (en) * 1973-05-24 1978-01-24 Kennametal Inc. Excavation tool
US3918538A (en) * 1974-07-01 1975-11-11 Hughes Tool Co Rotary percussion earth boring bit
US3970158A (en) * 1975-04-28 1976-07-20 Hughes Tool Company Tooth loading for earth boring bits
US4047583A (en) * 1976-06-01 1977-09-13 Dresser Industries, Inc. Earth boring cutting element retention system
US4005906A (en) * 1975-12-15 1977-02-01 Kennametal Inc. Impact or demolition tool
US4077734A (en) * 1976-06-29 1978-03-07 Kennametal Inc. Insert for mining tools and the like
SE411929B (en) * 1977-03-03 1980-02-11 Sandvik Ab DRILL CHRONICLE FOR MOUNTAIN DRILLING
US4325439A (en) * 1979-05-02 1982-04-20 Smith International, Inc. Diamond insert stud for a drag bit
US4406337A (en) * 1981-03-31 1983-09-27 Hughes Tool Company Insert with locking projection
FR2504589A1 (en) * 1981-04-24 1982-10-29 Vennin Henri One-piece hardened steel rotating drilling tool - having diamond cutting studs and lubricant injection ports
US4739844A (en) * 1984-04-02 1988-04-26 Becker Drills, Inc. Hammer drill bit and sub-assembly
US4991670A (en) * 1984-07-19 1991-02-12 Reed Tool Company, Ltd. Rotary drill bit for use in drilling holes in subsurface earth formations
GB8418481D0 (en) * 1984-07-19 1984-08-22 Nl Petroleum Prod Rotary drill bits
JPH0317142Y2 (en) * 1985-06-18 1991-04-11
US4654948A (en) * 1985-12-02 1987-04-07 W. Wesley Perry Method for renewing the cutting face of a diamond drill bit
US4654947A (en) * 1985-12-02 1987-04-07 W. Wesley Perry Drill bit and method of renewing drill bit cutting face
JPH0226695U (en) * 1988-08-09 1990-02-21
US5028092A (en) * 1989-04-05 1991-07-02 Coski Enterprises, Ltd. Impact kerfing rock cutter and method
US5145016B1 (en) * 1990-04-30 1996-08-13 Rock Bit International Inc Rock bit with reaming rows
US5131481A (en) * 1990-12-19 1992-07-21 Kennametal Inc. Insert having a surface of carbide particles
DE4101458A1 (en) * 1991-01-19 1992-07-23 Wolf Thomas FOR A CUTTING DRILL DRIVER DESIGNED WITH AXIAL PRESSURE AND BLOCKING
US5346026A (en) * 1992-01-31 1994-09-13 Baker Hughes Incorporated Rolling cone bit with shear cutting gage
US5467836A (en) * 1992-01-31 1995-11-21 Baker Hughes Incorporated Fixed cutter bit with shear cutting gage
US5287936A (en) * 1992-01-31 1994-02-22 Baker Hughes Incorporated Rolling cone bit with shear cutting gage
US5341890A (en) * 1993-01-08 1994-08-30 Smith International, Inc. Ultra hard insert cutters for heel row rotary cone rock bit applications
US5615747A (en) * 1994-09-07 1997-04-01 Vail, Iii; William B. Monolithic self sharpening rotary drill bit having tungsten carbide rods cast in steel alloys
US6547017B1 (en) 1994-09-07 2003-04-15 Smart Drilling And Completion, Inc. Rotary drill bit compensating for changes in hardness of geological formations
US5636700A (en) * 1995-01-03 1997-06-10 Dresser Industries, Inc. Roller cone rock bit having improved cutter gauge face surface compacts and a method of construction
US5755299A (en) * 1995-08-03 1998-05-26 Dresser Industries, Inc. Hardfacing with coated diamond particles
US5695019A (en) * 1995-08-23 1997-12-09 Dresser Industries, Inc. Rotary cone drill bit with truncated rolling cone cutters and dome area cutter inserts
DE19545646A1 (en) * 1995-12-07 1997-06-12 Hilti Ag Rotary impact twist drill
US5709278A (en) * 1996-01-22 1998-01-20 Dresser Industries, Inc. Rotary cone drill bit with contoured inserts and compacts
US5722497A (en) * 1996-03-21 1998-03-03 Dresser Industries, Inc. Roller cone gage surface cutting elements with multiple ultra hard cutting surfaces
GB2366585A (en) * 1997-06-30 2002-03-13 Smith International Improvements in or relating to drill bits
SE523853C2 (en) * 1997-06-30 2004-05-25 Smith International Drill bit with large inserts
US6260636B1 (en) 1999-01-25 2001-07-17 Baker Hughes Incorporated Rotary-type earth boring drill bit, modular bearing pads therefor and methods
US7861808B2 (en) * 2005-03-11 2011-01-04 Smith International, Inc. Cutter for maintaining edge sharpness
US7740090B2 (en) * 2005-04-04 2010-06-22 Smith International, Inc. Stress relief feature on PDC cutter
RU2462582C1 (en) * 2011-05-18 2012-09-27 Николай Митрофанович Панин Rock-destructing insertion (versions)
JP7108349B1 (en) * 2022-03-19 2022-07-28 松原鉄工株式会社 drill bit

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1039909A (en) * 1911-01-21 1912-10-01 Harry R Decker Boring-tool.
DE1193451B (en) * 1962-03-24 1965-05-26 Minsup Mining Supplies Bracket for Schraemhauen on a Schraemwalze
US3185228A (en) * 1963-01-21 1965-05-25 Hughes Tool Co Rotary-percussion drill bit with heel row inserts to prevent wedging
US3258077A (en) * 1963-12-30 1966-06-28 Phipps Orville Piercing point hammer drill bit
GB1074922A (en) * 1965-01-09 1967-07-05 Tungsten Carbide Developments Improvements in or relating to coal-or other mineral-cutter picks with hard metal tips
US3269470A (en) * 1965-11-15 1966-08-30 Hughes Tool Co Rotary-percussion drill bit with antiwedging gage structure
US3346060A (en) * 1965-12-23 1967-10-10 Beyer Leaman Rex Rotary-air-percussion, stabilizer and reamer drill bit of its own true gauge
US3536150A (en) * 1968-09-05 1970-10-27 Frank E Stebley Rotary-percussion drill bit
US3548959A (en) * 1969-07-10 1970-12-22 Gulf Research Development Co Relief-type jet bits

Also Published As

Publication number Publication date
US3858671A (en) 1975-01-07
DE2417600B2 (en) 1975-06-12
CA981248A (en) 1976-01-06
JPS5013201A (en) 1975-02-12
JPS5435561B2 (en) 1979-11-02
GB1443092A (en) 1976-07-21
DE2417600A1 (en) 1974-10-31

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