AT354960B - DRILL BIT FOR THE PRODUCTION OF DRILLS IN GROUND OR STONE - Google Patents

DRILL BIT FOR THE PRODUCTION OF DRILLS IN GROUND OR STONE

Info

Publication number
AT354960B
AT354960B AT243578A AT243578A AT354960B AT 354960 B AT354960 B AT 354960B AT 243578 A AT243578 A AT 243578A AT 243578 A AT243578 A AT 243578A AT 354960 B AT354960 B AT 354960B
Authority
AT
Austria
Prior art keywords
drills
stone
ground
production
drill bit
Prior art date
Application number
AT243578A
Other languages
German (de)
Other versions
ATA243578A (en
Inventor
Josef Sulzer
Original Assignee
Panzer Ferdinand
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 Panzer Ferdinand filed Critical Panzer Ferdinand
Priority to AT243578A priority Critical patent/AT354960B/en
Priority to EP79101061A priority patent/EP0004674A3/en
Publication of ATA243578A publication Critical patent/ATA243578A/en
Application granted granted Critical
Publication of AT354960B publication Critical patent/AT354960B/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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/32—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers with expansible cutting tools
    • 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
    • E21B10/36—Percussion drill bits
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes
AT243578A 1978-04-06 1978-04-06 DRILL BIT FOR THE PRODUCTION OF DRILLS IN GROUND OR STONE AT354960B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AT243578A AT354960B (en) 1978-04-06 1978-04-06 DRILL BIT FOR THE PRODUCTION OF DRILLS IN GROUND OR STONE
EP79101061A EP0004674A3 (en) 1978-04-06 1979-04-06 Drill bit for making bore holes in earth and rock

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT243578A AT354960B (en) 1978-04-06 1978-04-06 DRILL BIT FOR THE PRODUCTION OF DRILLS IN GROUND OR STONE

Publications (2)

Publication Number Publication Date
ATA243578A ATA243578A (en) 1979-07-15
AT354960B true AT354960B (en) 1980-02-11

Family

ID=3534299

Family Applications (1)

Application Number Title Priority Date Filing Date
AT243578A AT354960B (en) 1978-04-06 1978-04-06 DRILL BIT FOR THE PRODUCTION OF DRILLS IN GROUND OR STONE

Country Status (2)

Country Link
EP (1) EP0004674A3 (en)
AT (1) AT354960B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2927417A3 (en) * 2014-03-31 2016-04-27 Sysbohr GmbH Bohrtechnik für den Spezialtiefbau Self-opening rotating percussion drill tip, especially for overburden drilling

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0358786A1 (en) * 1988-09-13 1990-03-21 Ing. G. Klemm Bohrtechnik GmbH Superimposing drilling device

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3971C (en) * H. GÖTZE, Schlossermeister, in Neumünster in Holstein Earth auger
DE39674C (en) * A. FAUCK und E. HASENÖRL in Wien Free fall drill for deep drilling
FR505941A (en) * 1918-11-12 1920-08-10 Chas L Stickney Improvements to drilling rigs
US1428774A (en) * 1921-09-19 1922-09-12 William R Gardner Fishtail bit
US1733452A (en) * 1926-12-13 1929-10-29 John W Doody Underreamer
GB297285A (en) * 1928-03-02 1928-09-20 Colon Dev Co Improvements in well-boring apparatus
GB540027A (en) * 1940-04-26 1941-10-02 Percy Cox Improvements in and relating to rock boring and like tools
US2397652A (en) * 1944-02-03 1946-04-02 Jr Woyman B Dunlap Underreamer
US2599167A (en) * 1946-02-23 1952-06-03 Dionisotti Joseph Scraping out device for mining boreholes
DE830033C (en) * 1950-01-15 1952-01-31 Guenther Fluegge Dr Ing Drill bits
BE795205A (en) * 1972-02-10 1973-05-29 Atlas Copco Ab METHOD AND APPARATUS FOR ROTARY DRILLING
FR2274780A1 (en) * 1974-06-12 1976-01-09 Ugine Aciers BUTTON SIZES FOR ROCK PERFORATION USING A HAMMER BOTTOM OF SIDE BLOWING HOLE

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2927417A3 (en) * 2014-03-31 2016-04-27 Sysbohr GmbH Bohrtechnik für den Spezialtiefbau Self-opening rotating percussion drill tip, especially for overburden drilling

Also Published As

Publication number Publication date
EP0004674A2 (en) 1979-10-17
EP0004674A3 (en) 1979-10-31
ATA243578A (en) 1979-07-15

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Legal Events

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