DK265876A - STENBOR - Google Patents

STENBOR

Info

Publication number
DK265876A
DK265876A DK265876A DK265876A DK265876A DK 265876 A DK265876 A DK 265876A DK 265876 A DK265876 A DK 265876A DK 265876 A DK265876 A DK 265876A DK 265876 A DK265876 A DK 265876A
Authority
DK
Denmark
Prior art keywords
stenbor
Prior art date
Application number
DK265876A
Other languages
Danish (da)
Inventor
H Pietsch
K Steinkyhler
Original Assignee
Krupp Gmbh
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 Krupp Gmbh filed Critical Krupp Gmbh
Publication of DK265876A publication Critical patent/DK265876A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E21B10/40—Percussion drill bits with leading portion
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/44—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts
    • E21B10/445—Bits with helical conveying portion, e.g. screw type bits; Augers with leading portion or with detachable parts percussion type, e.g. for masonry
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Earth Drilling (AREA)
DK265876A 1975-06-24 1976-06-14 STENBOR DK265876A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752528003 DE2528003A1 (en) 1975-06-24 1975-06-24 ROCK DRILLS

Publications (1)

Publication Number Publication Date
DK265876A true DK265876A (en) 1976-12-25

Family

ID=5949783

Family Applications (1)

Application Number Title Priority Date Filing Date
DK265876A DK265876A (en) 1975-06-24 1976-06-14 STENBOR

Country Status (4)

Country Link
DE (1) DE2528003A1 (en)
DK (1) DK265876A (en)
FR (1) FR2315602A1 (en)
SE (1) SE7602306L (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2756990C2 (en) * 1977-12-21 1986-03-27 Fried. Krupp Gmbh, 4300 Essen Rock drill
ES8102625A1 (en) * 1980-02-25 1980-12-01 Pellicer Carlos F Auger for boring stony ground - has spaced teeth on pointed base to commence bore before helical part is operating
SE452636B (en) * 1983-09-20 1987-12-07 Santrade Ltd Rock drill bit
DE3510048C1 (en) * 1985-03-20 1986-04-10 Siegfried 5883 Kierspe Treitz Hammer drill bit for rock drilling machines
DE3544433C2 (en) * 1985-12-16 1995-12-14 Hilti Ag Rock drill
DE3608276A1 (en) 1986-03-12 1987-09-17 Dunkel Otto Gmbh CONTACT ELEMENT IN THE FORM OF A CONTACT SPRING SOCKET OR A SPRING PLUG AND METHOD FOR THE PRODUCTION THEREOF
DE3707798A1 (en) * 1987-03-11 1988-09-22 Hawera Probst Kg Hartmetall ROCK DRILL
DE3919264C2 (en) * 1989-06-13 1997-01-23 Duss Maschf Rotary impact drill for a hand-operated drill
DE4102794A1 (en) * 1991-01-31 1992-08-06 Hawera Probst Kg Hartmetall Drill bit for hammer drill - has radial arms of zig-zag contour, fitted with hard metal tips
TW299385B (en) * 1994-12-12 1997-03-01 Black & Decker Inc Cutting tools for drilling concrete, aggregate, masonry or the like materials
US5918105A (en) * 1994-12-12 1999-06-29 Black & Decker Inc. Cutting tools for drilling concrete, aggregate, masonry or the like materials
US5575342A (en) * 1995-05-26 1996-11-19 Sandvik Ab Percussion drill bit, an insert for use therein and a method of drilling a bore
EP3581352B1 (en) * 2018-06-11 2021-10-06 HILTI Aktiengesellschaft Reamer and method for producing countersunk bores in concrete

Also Published As

Publication number Publication date
DE2528003A1 (en) 1977-01-20
FR2315602A1 (en) 1977-01-21
SE7602306L (en) 1976-12-25

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