ATE119233T1 - Bohrweissel. - Google Patents

Bohrweissel.

Info

Publication number
ATE119233T1
ATE119233T1 AT91310787T AT91310787T ATE119233T1 AT E119233 T1 ATE119233 T1 AT E119233T1 AT 91310787 T AT91310787 T AT 91310787T AT 91310787 T AT91310787 T AT 91310787T AT E119233 T1 ATE119233 T1 AT E119233T1
Authority
AT
Austria
Prior art keywords
working face
working
crown
elongate
peaks
Prior art date
Application number
AT91310787T
Other languages
German (de)
English (en)
Inventor
Aulette Stewart
Original Assignee
De Beers Ind Diamond
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 De Beers Ind Diamond filed Critical De Beers Ind Diamond
Application granted granted Critical
Publication of ATE119233T1 publication Critical patent/ATE119233T1/de

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
    • E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
    • 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
    • E21B10/48—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type
    • E21B10/485—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of core type with inserts in form of chisels, blades or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Fluid Mechanics (AREA)
  • Earth Drilling (AREA)
  • Drilling Tools (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Ceramic Products (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Surgical Instruments (AREA)
  • Holo Graphy (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
AT91310787T 1990-11-23 1991-11-22 Bohrweissel. ATE119233T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA909441 1990-11-23

Publications (1)

Publication Number Publication Date
ATE119233T1 true ATE119233T1 (de) 1995-03-15

Family

ID=25580413

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91310787T ATE119233T1 (de) 1990-11-23 1991-11-22 Bohrweissel.

Country Status (5)

Country Link
EP (1) EP0487355B1 (fr)
AT (1) ATE119233T1 (fr)
AU (1) AU644241B2 (fr)
CA (1) CA2056049C (fr)
DE (1) DE69107800T2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9419261D0 (en) 1994-09-23 1994-11-09 De Beers Ind Diamond Saws
KR100414006B1 (ko) * 2001-02-20 2004-01-07 이화다이아몬드공업 주식회사 가공팁 및 이를 포함하는 절삭휠, 연마휠, 천공휠
CA2770308C (fr) 2009-08-07 2017-11-28 Smith International, Inc. Structure diamantee a couche de transition presentant un meilleur rapport d'epaisseur
CN102648328B (zh) 2009-08-07 2015-02-18 史密斯国际有限公司 具有高的韧度和高的耐磨性的多晶金刚石材料
WO2011017625A2 (fr) 2009-08-07 2011-02-10 Smith International, Inc. Procédé de formation d'un élément de coupe en diamant thermiquement stable
WO2011017607A2 (fr) 2009-08-07 2011-02-10 Smith International, Inc. Pièce insérée en diamant hautement résistante à l’usure et dotée d’une structure de transition améliorée
CA2770306A1 (fr) 2009-08-07 2011-02-10 Smith International, Inc. Garniture en diamant polycristallin a gradient fonctionnel
US9482056B2 (en) 2011-12-30 2016-11-01 Smith International, Inc. Solid PCD cutter
JP6182365B2 (ja) * 2013-06-17 2017-08-16 株式会社丸和技研 ケーシングビット及びケーシングパイプ

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2495400A (en) * 1946-06-03 1950-01-24 Jr Edward B Williams Core bit
US2729427A (en) * 1952-01-18 1956-01-03 Longyear E J Co Bit
US2818233A (en) * 1954-05-03 1957-12-31 Jr Edward B Williams Drill bit
US3537538A (en) * 1969-05-21 1970-11-03 Christensen Diamond Prod Co Impregnated diamond bit
JPS5382601A (en) * 1976-12-28 1978-07-21 Tokiwa Kogyo Kk Rotary grinding type excavation drill head
US4128136A (en) * 1977-12-09 1978-12-05 Lamage Limited Drill bit
US4533004A (en) * 1984-01-16 1985-08-06 Cdp, Ltd. Self sharpening drag bit for sub-surface formation drilling
DE8509236U1 (de) * 1984-03-30 1985-09-19 De Beers Industrial Diamond Division (Proprietary) Ltd., Johannesburg, Transvaal Schleifwerkzeug mit Schleifeinsatz
GB8907618D0 (en) * 1989-04-05 1989-05-17 Morrison Pumps Sa Drilling

Also Published As

Publication number Publication date
DE69107800D1 (de) 1995-04-06
EP0487355A1 (fr) 1992-05-27
AU8807691A (en) 1992-05-28
CA2056049C (fr) 1998-02-24
EP0487355B1 (fr) 1995-03-01
DE69107800T2 (de) 1995-08-03
AU644241B2 (en) 1993-12-02
CA2056049A1 (fr) 1992-05-24

Similar Documents

Publication Publication Date Title
IT1152205B (it) Portautensile per trapani e per trapani a percussione
IT1151283B (it) Meccanismo a sgancio rapido e a bloccaggio sicuro,per l'impiego su chiavi a tubo e utensili motorizzati e a percussione
IT1224844B (it) Scalpello di trivellazione incorporante un indicatore di usura del tipo a tirante teso
GB2227509B (en) A combination drill bit
MX163766B (es) Aparato de retencion de broca cortadora para minero
IT8521843A0 (it) Martello perforatore con un dispositivo di percussione pneumatico.
ATE119233T1 (de) Bohrweissel.
IT1182394B (it) Dispositivo per la perforazione a percussione
IT1184944B (it) Pinza portapunta per un utensile per la perforazione a percussione
DE3854719D1 (de) Ausrüstung für einen Bohrstrang mit einem Zwischenstück mit einer seitlichen Öffnung und Kabelschnelllösbarkeit.
DE69019302D1 (de) Vorrichtung zum Ändern der Länge einer Werkzeugzusammensetzung in einem Bohrloch.
DE3587476D1 (de) Bohrlochwerkzeug mit einem auswechselbaren huelsenventil.
FI935559A7 (fi) Menetelmä kovametallinastojen kiinnittämiseksi porakruunuun ja porakruunu
AU5908786A (en) Well tool for use with down-hole drilling apparatus
FI892492L (fi) Työkalu, jonka sisäänpistopäässä on pitkittäisiä uria
FI940042L (fi) Siirtosylinterisovitelma kallioporakoneen syöttöpalkissa
IT209057Z2 (it) Utensile di trapanatura per trapani a martellatura e percussione.
ATE164103T1 (de) Bohrwerkzeug
DE3871137D1 (de) Schlagbohrer mit austauschbarem schneid- oder bohrkopf mit abwaerts oder seitwaerts gerichteten spuelungskanaelen.
ATA205090A (de) Bohrkrone mit umfangsverteilt angeordneten zaehnen fuer bohrrohre
IT8553007V0 (it) Dispositivo per la perforazione a percussione
IT8567175A0 (it) Dispositivo per la perforazione a percussione
DE59307048D1 (de) Rotationswerkzeug mit Hartmetalleinsätzen
SE8107856L (sv) Kombinationsverktyg
IT8249692A0 (it) Dispositivo di sicurezza per pinze portapunta, in particolare per laperforazione a percussione

Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties