AT387425B - DRILL CUTTER - Google Patents

DRILL CUTTER

Info

Publication number
AT387425B
AT387425B AT0118285A AT118285A AT387425B AT 387425 B AT387425 B AT 387425B AT 0118285 A AT0118285 A AT 0118285A AT 118285 A AT118285 A AT 118285A AT 387425 B AT387425 B AT 387425B
Authority
AT
Austria
Prior art keywords
drill cutter
drill
cutter
Prior art date
Application number
AT0118285A
Other languages
German (de)
Other versions
ATA118285A (en
Inventor
Helmut Kreitmeier
Original Assignee
Bauer Spezialtiefbau
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 Bauer Spezialtiefbau filed Critical Bauer Spezialtiefbau
Publication of ATA118285A publication Critical patent/ATA118285A/en
Application granted granted Critical
Publication of AT387425B publication Critical patent/AT387425B/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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • E21B10/627—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements
    • E21B10/633—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable with plural detachable cutting elements independently detachable
    • 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
    • E21B10/02—Core bits
    • E21B10/04—Core bits with core destroying means
    • 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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • 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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
AT0118285A 1984-05-10 1985-04-19 DRILL CUTTER AT387425B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19843417399 DE3417399A1 (en) 1984-05-10 1984-05-10 Bit

Publications (2)

Publication Number Publication Date
ATA118285A ATA118285A (en) 1988-06-15
AT387425B true AT387425B (en) 1989-01-25

Family

ID=6235501

Family Applications (1)

Application Number Title Priority Date Filing Date
AT0118285A AT387425B (en) 1984-05-10 1985-04-19 DRILL CUTTER

Country Status (3)

Country Link
AT (1) AT387425B (en)
CH (1) CH668099A5 (en)
DE (1) DE3417399A1 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122670A (en) * 1982-06-28 1984-01-18 Smith International Improvements relating to rock bits

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE119771C (en) *
DE804314C (en) * 1947-08-26 1951-04-19 Gewerkschaft Emscher Lippe Drill bits with hard metal cutting edges
DE2854461C2 (en) * 1978-12-16 1983-03-10 Wirth Maschinen- und Bohrgeräte-Fabrik GmbH, 5140 Erkelenz Countersink hammer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2122670A (en) * 1982-06-28 1984-01-18 Smith International Improvements relating to rock bits

Also Published As

Publication number Publication date
ATA118285A (en) 1988-06-15
CH668099A5 (en) 1988-11-30
DE3417399A1 (en) 1985-11-14
DE3417399C2 (en) 1989-09-14

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Legal Events

Date Code Title Description
ELA Expired due to lapse of time
UEP Publication of translation of european patent specification