GB1228679A - - Google Patents

Info

Publication number
GB1228679A
GB1228679A GB1228679DA GB1228679A GB 1228679 A GB1228679 A GB 1228679A GB 1228679D A GB1228679D A GB 1228679DA GB 1228679 A GB1228679 A GB 1228679A
Authority
GB
United Kingdom
Prior art keywords
bit
working face
further insert
longitudinal
flutes
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.)
Expired
Application number
Other languages
English (en)
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 filed Critical
Publication of GB1228679A publication Critical patent/GB1228679A/en
Expired 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type inserts
    • 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)
  • Forging (AREA)
GB1228679D 1968-09-16 1969-08-26 Expired GB1228679A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US76000268A 1968-09-16 1968-09-16

Publications (1)

Publication Number Publication Date
GB1228679A true GB1228679A (enrdf_load_stackoverflow) 1971-04-15

Family

ID=25057743

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1228679D Expired GB1228679A (enrdf_load_stackoverflow) 1968-09-16 1969-08-26

Country Status (2)

Country Link
US (1) US3519092A (enrdf_load_stackoverflow)
GB (1) GB1228679A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2326897A (en) * 1997-06-30 1999-01-06 Smith International Improvements in or relating to drill bits
RU2137595C1 (ru) * 1998-06-01 1999-09-20 Сибирский государственный индустриальный университет Ударник бурильной машины
GB2366585A (en) * 1997-06-30 2002-03-13 Smith International Improvements in or relating to drill bits

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2930856A1 (de) * 1979-07-30 1981-02-19 Hilti Ag Vorrichtung zum bohren von gestein
US4069880A (en) * 1973-05-24 1978-01-24 Kennametal Inc. Excavation tool
US4296825A (en) * 1977-11-25 1981-10-27 Sandvik Aktiebolag Rock drill
US4304312A (en) * 1980-01-11 1981-12-08 Sandvik Aktiebolag Percussion drill bit having centrally projecting insert
US4716976A (en) * 1986-10-28 1988-01-05 Kennametal Inc. Rotary percussion drill bit
US5131481A (en) * 1990-12-19 1992-07-21 Kennametal Inc. Insert having a surface of carbide particles
US5947215A (en) * 1997-11-06 1999-09-07 Sandvik Ab Diamond enhanced rock drill bit for percussive drilling
US6276467B1 (en) * 1999-10-25 2001-08-21 Driltech Mission Llc Percussive rock drill bit with asymmetric wing
SE0402026L (sv) * 2004-08-17 2006-01-17 Sandvik Intellectual Property Bergborrkrona och gängförband för slående bergborrning
EP2642063A1 (en) 2012-03-22 2013-09-25 Sandvik Intellectual Property AB A drill bit for percussive drilling

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507222A (en) * 1946-08-19 1950-05-09 Phipps Orville Multiple edge percussion bit
US2879973A (en) * 1956-09-17 1959-03-31 Kennametal Inc Percussion drill bit
US3140749A (en) * 1958-12-05 1964-07-14 Dionisotti Joseph Wedge inserts for drill bit
BE653828A (enrdf_load_stackoverflow) * 1963-10-01
US3388756A (en) * 1965-03-29 1968-06-18 Varel Mfg Company Percussion bit

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2326897A (en) * 1997-06-30 1999-01-06 Smith International Improvements in or relating to drill bits
GB2366585A (en) * 1997-06-30 2002-03-13 Smith International Improvements in or relating to drill bits
GB2326897B (en) * 1997-06-30 2002-05-01 Smith International Drill bit
US6918455B2 (en) 1997-06-30 2005-07-19 Smith International Drill bit with large inserts
RU2137595C1 (ru) * 1998-06-01 1999-09-20 Сибирский государственный индустриальный университет Ударник бурильной машины

Also Published As

Publication number Publication date
DE1944551B2 (de) 1974-09-19
US3519092A (en) 1970-07-07
DE1944551A1 (de) 1970-08-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees