ZA744967B - Segmented earth boring drill bit - Google Patents

Segmented earth boring drill bit

Info

Publication number
ZA744967B
ZA744967B ZA00744967A ZA744967A ZA744967B ZA 744967 B ZA744967 B ZA 744967B ZA 00744967 A ZA00744967 A ZA 00744967A ZA 744967 A ZA744967 A ZA 744967A ZA 744967 B ZA744967 B ZA 744967B
Authority
ZA
South Africa
Prior art keywords
drill bit
earth boring
boring drill
segmented
segmented earth
Prior art date
Application number
ZA00744967A
Inventor
R Pessier
W Sheperd
Original Assignee
Hughes Tool Co
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 Hughes Tool Co filed Critical Hughes Tool Co
Publication of ZA744967B publication Critical patent/ZA744967B/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
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/28—Enlarging drilled holes, e.g. by counterboring

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
ZA00744967A 1974-01-02 1974-08-02 Segmented earth boring drill bit ZA744967B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US430103A US3902562A (en) 1974-01-02 1974-01-02 Segmented earth boring drill bit

Publications (1)

Publication Number Publication Date
ZA744967B true ZA744967B (en) 1975-08-27

Family

ID=23706078

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00744967A ZA744967B (en) 1974-01-02 1974-08-02 Segmented earth boring drill bit

Country Status (5)

Country Link
US (1) US3902562A (en)
JP (1) JPS5517031Y2 (en)
CA (1) CA1003397A (en)
GB (1) GB1481546A (en)
ZA (1) ZA744967B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007799A (en) * 1975-07-07 1977-02-15 Smith International, Inc. Raise drill with replaceable stem
US4049067A (en) * 1975-11-05 1977-09-20 Ingersoll-Rand Company Cutter mounting extension apparatus
US4381038A (en) * 1980-11-21 1983-04-26 The Robbins Company Raise bit with cutters stepped in a spiral and flywheel
US20100078223A1 (en) * 2008-09-26 2010-04-01 Buske Robert J Plate structure for earth-boring tools, tools including plate structures and methods of forming such tools
US9834999B2 (en) 2011-07-13 2017-12-05 King Kutter, Inc. Post hole digger
US9163382B2 (en) 2013-01-16 2015-10-20 King Kutter, Inc. Gearbox lock mechanism
US10036205B2 (en) 2015-06-04 2018-07-31 The Charles Machine Works, Inc. Stacked-plate reamer

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1124445A (en) * 1914-02-24 1915-01-12 Howard R Hughes Transverse-cutter rotary drill.
US1468509A (en) * 1920-10-26 1923-09-18 Roscoe E Overman Drill
US1816568A (en) * 1929-06-05 1931-07-28 Reed Roller Bit Co Drill bit
US2047114A (en) * 1933-05-16 1936-07-07 Chicago Pneumatic Tool Co Combined disk and roller bit
US2086751A (en) * 1934-12-19 1937-07-13 Edward L Taylor Earth boring bit
US2090356A (en) * 1935-02-23 1937-08-17 Chicago Pneumatic Tool Co Annular cutting or bore hole enlarging apparatus
US2949281A (en) * 1957-09-06 1960-08-16 Hughes Tool Co Large diameter earth boring drill
US3099325A (en) * 1961-10-30 1963-07-30 Sr James A Purser Drill bit
US3285355A (en) * 1964-02-17 1966-11-15 Smith Ind International Inc Large diameter well-drilling bit
US3659659A (en) * 1970-02-04 1972-05-02 Dresser Ind Large diameter bit with a replaceable stem

Also Published As

Publication number Publication date
US3902562A (en) 1975-09-02
JPS50155303U (en) 1975-12-23
JPS5517031Y2 (en) 1980-04-21
CA1003397A (en) 1977-01-11
AU7248574A (en) 1976-02-26
GB1481546A (en) 1977-08-03

Similar Documents

Publication Publication Date Title
JPS5367601A (en) Earth crust boring drill bit
CA1024978A (en) Rock drilling
ZA722918B (en) Anti-tracking earth boring drill
ZA78999B (en) Rock drill bit
DE2963533D1 (en) Rotary rock drill bit
ZA752960B (en) Rotary percussion earth boring bit
AU504704B2 (en) Earth boring drill bit
AU503750B2 (en) Rock drilling bit
HU173189B (en) Auger drill bit
GB2025540B (en) Earth boring bit seals
CA994750A (en) Drilling bits for boring holes and wells
CA1005045A (en) Rock drill
CA1014140A (en) Drilling string shock-absorbing tool
ZA744967B (en) Segmented earth boring drill bit
JPS5329203A (en) Rock drilling bit
GB2011286B (en) Rock drill bit
ZA752959B (en) Rotary percussion earth boring bit
JPS522804A (en) Rock drilling bit
JPS51151201A (en) Doubleepiston rock drill
CA1029366A (en) Drill bits
CH608859A5 (en) Connection between rock drill and drilling machine
AU479665B2 (en) Segmented earth boring drill bit
CA1009645A (en) Earth boring tool with improved inserts
ZA772203B (en) Rock drill bit
GB1546198A (en) Rotary earth boring bit