ES467508A1 - Barrera perfeccionada para roca. - Google Patents

Barrera perfeccionada para roca.

Info

Publication number
ES467508A1
ES467508A1 ES467508A ES467508A ES467508A1 ES 467508 A1 ES467508 A1 ES 467508A1 ES 467508 A ES467508 A ES 467508A ES 467508 A ES467508 A ES 467508A ES 467508 A1 ES467508 A1 ES 467508A1
Authority
ES
Spain
Prior art keywords
wall portion
cylindrical
longitudinally
inner end
steel
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
ES467508A
Other languages
English (en)
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.)
Sandvik AB
Original Assignee
Sandvik AB
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 Sandvik AB filed Critical Sandvik AB
Publication of ES467508A1 publication Critical patent/ES467508A1/es
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
    • E21B10/36—Percussion drill 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
    • E21B10/56—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)
  • Percussive Tools And Related Accessories (AREA)
ES467508A 1977-03-03 1978-03-02 Barrera perfeccionada para roca. Expired ES467508A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7702345A SE411929B (sv) 1977-03-03 1977-03-03 Borrkrona for bergborrning

Publications (1)

Publication Number Publication Date
ES467508A1 true ES467508A1 (es) 1978-10-16

Family

ID=20330604

Family Applications (1)

Application Number Title Priority Date Filing Date
ES467508A Expired ES467508A1 (es) 1977-03-03 1978-03-02 Barrera perfeccionada para roca.

Country Status (17)

Country Link
US (1) US4181187A (es)
JP (1) JPS53134703A (es)
AT (1) AT368934B (es)
AU (1) AU520189B2 (es)
BR (1) BR7801282A (es)
CA (1) CA1087604A (es)
DE (1) DE2807353C2 (es)
ES (1) ES467508A1 (es)
FI (1) FI65647C (es)
FR (1) FR2382576A1 (es)
GB (1) GB1581304A (es)
IE (1) IE46764B1 (es)
IN (1) IN148478B (es)
MX (1) MX147585A (es)
NO (1) NO151511C (es)
SE (1) SE411929B (es)
ZA (1) ZA78999B (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2921644C2 (de) * 1979-05-28 1982-02-18 Sandvik AB, 81181 Sandviken Schlagend beaufschlagbare Gesteinsbohrkrone
US4674802A (en) * 1982-09-17 1987-06-23 Kennametal, Inc Multi-insert cutter bit
DE3334815C1 (de) * 1983-09-26 1984-10-18 Siku GmbH Metall- und Kunststoffwarenfabrik, Rickenbach Werkzeug
JPS61142080U (es) * 1985-02-25 1986-09-02
US4716976A (en) * 1986-10-28 1988-01-05 Kennametal Inc. Rotary percussion drill bit
GB8829747D0 (en) * 1988-12-21 1989-02-15 Macdonald Pneumatics Scabbler bits
DE4114271A1 (de) * 1991-05-02 1992-11-05 Hilti Ag Bohr- und meisselwerkzeug mit grundkoerper und schneidkoerper
AT265U3 (de) * 1995-01-18 1996-01-25 Techmo Entw & Vertriebs Gmbh Bohrkrone
BE1012119A3 (fr) * 1998-08-13 2000-05-02 Baroid Technology Inc Couteau, en particulier pour une tete de forage ou de carottage.
US6598689B1 (en) 2000-08-17 2003-07-29 Smith International, Inc. Roller cone for drill bit having improved resistance to fatigue cracking
US6408957B1 (en) 2000-08-23 2002-06-25 Smith International, Inc. Sealed bearing roller cone bit having anti-plugging device
US6799648B2 (en) 2002-08-27 2004-10-05 Applied Process, Inc. Method of producing downhole drill bits with integral carbide studs
US20050252691A1 (en) * 2004-03-19 2005-11-17 Smith International, Inc. Drill bit having increased resistance to fatigue cracking and method of producing same
US20050257963A1 (en) * 2004-05-20 2005-11-24 Joseph Tucker Self-Aligning Insert for Drill Bits
US8079648B2 (en) * 2009-01-26 2011-12-20 Kennametal Inc. Cold-formed cutting tool
AT12442U1 (de) 2010-05-26 2012-05-15 Dywidag Systems Int Gmbh Bohrkrone
US9739097B2 (en) 2011-04-26 2017-08-22 Smith International, Inc. Polycrystalline diamond compact cutters with conic shaped end
CA2834357A1 (en) 2011-04-26 2012-11-01 Smith International, Inc. Methods of attaching rolling cutters in fixed cutter bits using sleeve, compression spring, and/or pin(s)/ball(s)

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2030576A (en) * 1932-07-28 1936-02-11 Erickson Charles Replaceable bit rock drill
US2097030A (en) * 1934-12-15 1937-10-26 Robert J Killgore Rock drill bit
US2121202A (en) * 1935-03-19 1938-06-21 Robert J Killgore Rotary bit
US3100545A (en) * 1961-04-11 1963-08-13 Ingersoll Rand Co Drill bit
US3388757A (en) * 1967-03-23 1968-06-18 Smith Ind International Inc Hardened inserts for drill bits
US3618683A (en) * 1968-12-16 1971-11-09 Ingersoll Rand Co Button bit
US3599737A (en) * 1970-03-02 1971-08-17 Smith International Anchored hardened cutter inserts
GB1294717A (en) * 1970-08-14 1972-11-01 Wickman Wimet Ltd Rotary percussion drill bits
GB1343040A (en) * 1971-04-26 1974-01-10 Stebley F E Insert for drilling unit
US3749190A (en) * 1971-05-06 1973-07-31 Ingersoll Rand Co Retaining carbide in rock drill bits
US3807804A (en) * 1972-09-12 1974-04-30 Kennametal Inc Impacting tool with tungsten carbide insert tip
US3858671A (en) * 1973-04-23 1975-01-07 Kennametal Inc Excavating tool
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
CN1286332C (zh) * 2004-08-12 2006-11-22 华为技术有限公司 Mbms业务传输方法

Also Published As

Publication number Publication date
SE411929B (sv) 1980-02-11
GB1581304A (en) 1980-12-10
FI780644A (fi) 1978-09-04
IN148478B (es) 1981-03-07
AU3354278A (en) 1979-08-30
DE2807353C2 (de) 1981-11-26
NO151511C (no) 1985-04-24
AT368934B (de) 1982-11-25
JPS566476B2 (es) 1981-02-12
FI65647B (fi) 1984-02-29
CA1087604A (en) 1980-10-14
ATA150178A (de) 1982-04-15
FR2382576A1 (fr) 1978-09-29
JPS53134703A (en) 1978-11-24
US4181187A (en) 1980-01-01
NO780724L (no) 1978-09-05
FI65647C (fi) 1984-06-11
IE780449L (en) 1978-09-03
ZA78999B (en) 1979-05-30
MX147585A (es) 1982-12-15
SE7702345L (sv) 1978-09-04
NO151511B (no) 1985-01-07
BR7801282A (pt) 1978-09-26
FR2382576B1 (es) 1982-05-07
AU520189B2 (en) 1982-01-21
DE2807353A1 (de) 1978-09-07
IE46764B1 (en) 1983-09-21

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19981103