IT8349242A0 - DRILLING BIT FOR DRILLING THE SOIL - Google Patents

DRILLING BIT FOR DRILLING THE SOIL

Info

Publication number
IT8349242A0
IT8349242A0 IT8349242A IT4924283A IT8349242A0 IT 8349242 A0 IT8349242 A0 IT 8349242A0 IT 8349242 A IT8349242 A IT 8349242A IT 4924283 A IT4924283 A IT 4924283A IT 8349242 A0 IT8349242 A0 IT 8349242A0
Authority
IT
Italy
Prior art keywords
drilling
soil
bit
drilling bit
Prior art date
Application number
IT8349242A
Other languages
Italian (it)
Other versions
IT1168224B (en
Inventor
Takano Sho
Original Assignee
Sumitomo Metal Mining 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 Sumitomo Metal Mining Co filed Critical Sumitomo Metal Mining Co
Publication of IT8349242A0 publication Critical patent/IT8349242A0/en
Application granted granted Critical
Publication of IT1168224B publication Critical patent/IT1168224B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/08—Roller bits
    • E21B10/16—Roller bits characterised by tooth form or arrangement
IT49242/83A 1982-12-28 1983-10-28 DRILLING POINT TO DRILL THE GROUND IT1168224B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57229329A JPS59122690A (en) 1982-12-28 1982-12-28 Underground drilling drill bit

Publications (2)

Publication Number Publication Date
IT8349242A0 true IT8349242A0 (en) 1983-10-28
IT1168224B IT1168224B (en) 1987-05-20

Family

ID=16890439

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49242/83A IT1168224B (en) 1982-12-28 1983-10-28 DRILLING POINT TO DRILL THE GROUND

Country Status (5)

Country Link
JP (1) JPS59122690A (en)
DE (1) DE3339675C2 (en)
FR (1) FR2538441A1 (en)
GB (1) GB2132662A (en)
IT (1) IT1168224B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1234096A (en) * 1984-03-19 1988-03-15 Inco Limited Spherical bit
AR016883A1 (en) * 1997-08-28 2001-08-01 Shell Int Research A ROTARY TREPANE TO DRILL
US6604587B1 (en) 2000-06-14 2003-08-12 Smith International, Inc. Flat profile cutting structure for roller cone drill bits

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1897588A (en) * 1929-07-09 1933-02-14 Chicago Pneumatic Tool Co Rotary drilling apparatus
US2117679A (en) * 1935-12-27 1938-05-17 Chicago Pneumatic Tool Co Earth boring drill
US3098535A (en) * 1960-09-23 1963-07-23 Austin E Ragon Tri-cone bit with inserts
US3385385A (en) * 1966-04-01 1968-05-28 Reed Roller Bit Co Drill bit
GB1221723A (en) * 1967-06-09 1971-02-10 J C Soding & Halbach Kg Improved roller for rock boring equipment
GB1193717A (en) * 1967-09-08 1970-06-03 Inst Burovoi Tekhnik Improvements in or relating to Roller Cutter Boring Bits
DE1583013B1 (en) * 1967-11-04 1971-12-23 Vnii Burowoj Techniki Boring chisels
GB1224503A (en) * 1968-02-14 1971-03-10 Inst Burovoi Tekhnik Improvements in or relating to drilling apparatus
US3504751A (en) * 1968-02-20 1970-04-07 Tariel Georgievich Agoshashvil Drill bit
US3547209A (en) * 1969-01-06 1970-12-15 Shell Oil Co Deviation control bit and method
US3603414A (en) * 1970-01-30 1971-09-07 Frank E Stebley Insert for drilling unit
FR2198048A1 (en) * 1972-09-01 1974-03-29 Gw Murphy Indus3Ries Inc Drill bit roller cutter - with circumferential chisel-shaped webs having cutting inserts
US3946820A (en) * 1974-10-25 1976-03-30 Faurilda Ferne Knapp Novel cutter elements for drill bits
US3952815A (en) * 1975-03-24 1976-04-27 Dresser Industries, Inc. Land erosion protection on a rock cutter
US4202419A (en) * 1979-01-11 1980-05-13 Dresser Industries, Inc. Roller cutter with major and minor insert rows

Also Published As

Publication number Publication date
DE3339675C2 (en) 1986-05-07
GB8328216D0 (en) 1983-11-23
FR2538441A1 (en) 1984-06-29
JPS59122690A (en) 1984-07-16
GB2132662A (en) 1984-07-11
DE3339675A1 (en) 1984-07-12
IT1168224B (en) 1987-05-20

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19941027