RO58895A - - Google Patents

Info

Publication number
RO58895A
RO58895A RO62233A RO6223370A RO58895A RO 58895 A RO58895 A RO 58895A RO 62233 A RO62233 A RO 62233A RO 6223370 A RO6223370 A RO 6223370A RO 58895 A RO58895 A RO 58895A
Authority
RO
Romania
Application number
RO62233A
Other languages
Romanian (ro)
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 RO58895A publication Critical patent/RO58895A/ro

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/54Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
RO62233A 1969-03-19 1970-01-23 RO58895A (US20100223739A1-20100909-C00025.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6907864A FR2029963A5 (US20100223739A1-20100909-C00025.png) 1969-03-19 1969-03-19

Publications (1)

Publication Number Publication Date
RO58895A true RO58895A (US20100223739A1-20100909-C00025.png) 1976-01-15

Family

ID=9030879

Family Applications (1)

Application Number Title Priority Date Filing Date
RO62233A RO58895A (US20100223739A1-20100909-C00025.png) 1969-03-19 1970-01-23

Country Status (14)

Country Link
US (1) US3696875A (US20100223739A1-20100909-C00025.png)
BE (1) BE740959A (US20100223739A1-20100909-C00025.png)
BR (1) BR7017010D0 (US20100223739A1-20100909-C00025.png)
CH (1) CH528008A (US20100223739A1-20100909-C00025.png)
CS (1) CS193458B2 (US20100223739A1-20100909-C00025.png)
DE (1) DE1954576C3 (US20100223739A1-20100909-C00025.png)
ES (1) ES375650A1 (US20100223739A1-20100909-C00025.png)
FR (1) FR2029963A5 (US20100223739A1-20100909-C00025.png)
GB (1) GB1310883A (US20100223739A1-20100909-C00025.png)
NL (1) NL152053B (US20100223739A1-20100909-C00025.png)
PL (1) PL74590B1 (US20100223739A1-20100909-C00025.png)
RO (1) RO58895A (US20100223739A1-20100909-C00025.png)
SU (1) SU547179A3 (US20100223739A1-20100909-C00025.png)
YU (1) YU33125B (US20100223739A1-20100909-C00025.png)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2105219C3 (de) * 1971-02-04 1981-06-11 Shell Internationale Research Maatschappij B.V., 's-Gravenhage Diamantbohrmeißel
FR2135053B1 (US20100223739A1-20100909-C00025.png) * 1971-05-04 1974-08-19 Petroles Cie Francaise
SU483863A1 (ru) * 1973-01-03 1980-06-15 Всесоюзный Научно-Исследоваельский И Проектный Институт Тугоплавких Металлов И Твердых Сплавов Способ изготовлени алмазного бурового инструмента
US3938599A (en) * 1974-03-27 1976-02-17 Hycalog, Inc. Rotary drill bit
JPS5410325B2 (US20100223739A1-20100909-C00025.png) * 1974-06-10 1979-05-04
DE2633779C3 (de) * 1976-07-28 1983-11-03 Richard 5383 Kierspe Karnebogen Schlagbohrkrone
US4073354A (en) * 1976-11-26 1978-02-14 Christensen, Inc. Earth-boring drill bits
GB1548499A (en) * 1977-05-17 1979-07-18 Shell Int Research Rotary drilling bit for deephole drilling and method of manufacturing the same
GB1537000A (en) * 1977-08-17 1978-12-29 Shell Int Research Rotary drilling bit
US4244432A (en) * 1978-06-08 1981-01-13 Christensen, Inc. Earth-boring drill bits
US4351401A (en) * 1978-06-08 1982-09-28 Christensen, Inc. Earth-boring drill bits
US4234048A (en) * 1978-06-12 1980-11-18 Christensen, Inc. Drill bits embodying impregnated segments
FR2433130A1 (fr) * 1978-08-11 1980-03-07 Petroles Cie Francaise Dispositif antifriction, notamment pour turbine, et procede de realisation
US4241798A (en) * 1979-01-29 1980-12-30 Reed Tool Company Drilling bits for plastic formations
DE2916347C3 (de) * 1979-04-23 1981-12-03 Christensen, Inc., 84114 Salt Lake City, Utah Lagerstuhl für Direktantriebe von Tiefbohrmeißeln o.dgl. in einem Bohrloch arbeitenden Werkzeugen oder Geräten
US4550790A (en) * 1983-02-28 1985-11-05 Norton Christensen, Inc. Diamond rotating bit
EP0268592B1 (en) * 1986-05-19 1993-02-17 Smith International, Inc. Cooling networks for pcd bearing surfaces
US5175988A (en) * 1988-06-23 1993-01-05 Kanai Juyo Kogyo Company Ltd. Ring for spinning machinery
DE9308443U1 (de) * 1993-06-05 1993-08-19 Bilfinger + Berger Bauaktiengesellschaft, 68165 Mannheim Vollbohrkrone zum Herstellen von verrohrten Erdbohrungen
CA2191662C (en) * 1995-12-05 2001-01-30 Zhigang Fang Pressure molded powder metal milled tooth rock bit cone
US6394202B2 (en) 1999-06-30 2002-05-28 Smith International, Inc. Drill bit having diamond impregnated inserts primary cutting structure
US8327956B2 (en) * 2008-12-19 2012-12-11 Varel International, Ind., L.P. Multi-set PDC drill bit and method
US8439136B2 (en) * 2009-04-02 2013-05-14 Atlas Copco Secoroc Llc Drill bit for earth boring
GB201008093D0 (en) * 2010-05-14 2010-06-30 Element Six Production Pty Ltd Polycrystalline diamond
US9194189B2 (en) 2011-09-19 2015-11-24 Baker Hughes Incorporated Methods of forming a cutting element for an earth-boring tool, a related cutting element, and an earth-boring tool including such a cutting element
WO2013109664A1 (en) 2012-01-20 2013-07-25 Baker Hughes Incorporated Superabrasive-impregnated earth-boring tools with extended features and aggressive compositions, and related methods
WO2014197761A1 (en) 2013-06-06 2014-12-11 Milwaukee Electric Tool Corporation Step drill bit
US11273501B2 (en) 2018-04-26 2022-03-15 Milwaukee Electric Tool Corporation Step drill bit

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA659574A (en) * 1963-03-19 H. Davis Sidney Drilling bit
US2381415A (en) * 1943-11-19 1945-08-07 Jr Edward B Williams Drill bit
US2607562A (en) * 1951-03-19 1952-08-19 Phipps Orville Self-piloted rotary drill bit
US2800302A (en) * 1952-01-23 1957-07-23 Austin Powder Co Auger head
US3059708A (en) * 1959-08-07 1962-10-23 Jersey Prod Res Co Abrasion resistant stepped blade rotary drill bit
US3106973A (en) * 1960-09-26 1963-10-15 Christensen Diamond Prod Co Rotary drill bits
US3158216A (en) * 1961-04-27 1964-11-24 Inst Francais Du Petrole High speed drill bit
US3180440A (en) * 1962-12-31 1965-04-27 Jersey Prod Res Co Drag bit
GB996796A (en) * 1963-03-09 1965-06-30 P & V Mining & Engineering Ltd Improvements in and relating to tools for operating in rock, coal and other material
US3280927A (en) * 1964-01-31 1966-10-25 Petersen Anita E Finger-type pilot bit

Also Published As

Publication number Publication date
CH528008A (fr) 1972-09-15
DE1954576A1 (de) 1970-10-01
DE1954576B2 (de) 1973-04-12
CS193458B2 (en) 1979-10-31
ES375650A1 (es) 1972-05-16
YU3470A (en) 1975-10-31
PL74590B1 (en) 1974-12-31
US3696875A (en) 1972-10-10
DE1954576C3 (de) 1973-10-31
FR2029963A5 (US20100223739A1-20100909-C00025.png) 1970-10-23
NL6919217A (US20100223739A1-20100909-C00025.png) 1970-09-22
BR7017010D0 (pt) 1973-04-10
BE740959A (US20100223739A1-20100909-C00025.png) 1970-04-01
NL152053B (nl) 1977-01-17
YU33125B (en) 1976-04-30
GB1310883A (en) 1973-03-21
SU547179A3 (ru) 1977-02-15

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