PL250631A1 - Drill bit - Google Patents

Drill bit

Info

Publication number
PL250631A1
PL250631A1 PL25063184A PL25063184A PL250631A1 PL 250631 A1 PL250631 A1 PL 250631A1 PL 25063184 A PL25063184 A PL 25063184A PL 25063184 A PL25063184 A PL 25063184A PL 250631 A1 PL250631 A1 PL 250631A1
Authority
PL
Poland
Prior art keywords
drill bit
drill
bit
Prior art date
Application number
PL25063184A
Inventor
Herman Mcknight
Original Assignee
Graessle Clement F
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 Graessle Clement F filed Critical Graessle Clement F
Publication of PL250631A1 publication Critical patent/PL250631A1/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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/58—Chisel-type 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • 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
PL25063184A 1983-11-29 1984-11-29 Drill bit PL250631A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55600583A 1983-11-29 1983-11-29

Publications (1)

Publication Number Publication Date
PL250631A1 true PL250631A1 (en) 1985-08-13

Family

ID=24219495

Family Applications (1)

Application Number Title Priority Date Filing Date
PL25063184A PL250631A1 (en) 1983-11-29 1984-11-29 Drill bit

Country Status (8)

Country Link
EP (1) EP0163727A1 (en)
KR (1) KR850004138A (en)
AU (1) AU3743185A (en)
CA (1) CA1240311A (en)
IT (1) IT1178643B (en)
PL (1) PL250631A1 (en)
WO (1) WO1985002442A1 (en)
ZA (1) ZA849207B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3621414A1 (en) * 1986-06-26 1988-01-07 Hawera Probst Kg Hartmetall DRILLING TOOL
US5172775A (en) * 1991-03-06 1992-12-22 Kennametal Inc. Rotary drill bit insert
DE19964272C2 (en) * 1999-09-16 2003-05-28 Heller Dinklage Gmbh Geb Drills, in particular rock drills
US6595305B1 (en) 2000-02-15 2003-07-22 Kennametal Inc. Drill bit, hard member, and bit body
DE10129064A1 (en) 2001-06-15 2002-12-19 Hilti Ag rock drilling
US6860344B2 (en) 2001-06-25 2005-03-01 Kennametal Inc. Monolithic roof cutting bit insert
US7909547B2 (en) * 2005-10-08 2011-03-22 Milwaukee Electric Tool Corporation Replaceable tip for a bit or auger bit
US8328477B2 (en) 2006-03-02 2012-12-11 Milwaukee Electric Tool Corporation Cutting tool
US9500038B2 (en) 2013-02-01 2016-11-22 Milwaukee Electric Tool Corporation Auger bit with replaceable cutting bit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2529788A (en) * 1948-07-06 1950-11-14 Carl A Signell Drill
DE803895C (en) * 1948-12-03 1951-04-12 Herbert Jeschke Dr Ing Rock percussion drill with carbide cutting edges
US3163246A (en) * 1963-04-18 1964-12-29 Westinghouse Air Brake Co Rock drill bit
US3269471A (en) * 1963-11-26 1966-08-30 Robert T Alexander Rock drilling bit
NL191520C (en) * 1980-05-12 1995-08-21 Hoogovens Groep Bv Mortise drill for a blast furnace.
US4356873A (en) * 1980-12-08 1982-11-02 Mining Tools, Div. Of Smith Int'l., Inc. Cutter mounting and apparatus and method for a drill bit

Also Published As

Publication number Publication date
ZA849207B (en) 1985-07-31
KR850004138A (en) 1985-07-01
EP0163727A1 (en) 1985-12-11
AU3743185A (en) 1985-06-13
IT8423810A0 (en) 1984-11-29
CA1240311A (en) 1988-08-09
IT1178643B (en) 1987-09-09
WO1985002442A1 (en) 1985-06-06

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