DE151171C - - Google Patents

Info

Publication number
DE151171C
DE151171C DENDAT151171D DE151171DA DE151171C DE 151171 C DE151171 C DE 151171C DE NDAT151171 D DENDAT151171 D DE NDAT151171D DE 151171D A DE151171D A DE 151171DA DE 151171 C DE151171 C DE 151171C
Authority
DE
Germany
Prior art keywords
cutting edges
cutting
radial
cutting edge
central
Prior art date
Legal status (The legal status 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 status listed.)
Active
Application number
DENDAT151171D
Other languages
German (de)
English (en)
Publication of DE151171C publication Critical patent/DE151171C/de
Active legal-status Critical Current

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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits

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)
  • Earth Drilling (AREA)
DENDAT151171D Active DE151171C (cs)

Publications (1)

Publication Number Publication Date
DE151171C true DE151171C (cs)

Family

ID=418017

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT151171D Active DE151171C (cs)

Country Status (1)

Country Link
DE (1) DE151171C (cs)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538442A1 (fr) * 1982-12-23 1984-06-29 Charbonnages De France Taillant pour foration rotative assistee par jet
DE3707798A1 (de) * 1987-03-11 1988-09-22 Hawera Probst Kg Hartmetall Gesteinsbohrer
US5918105A (en) * 1994-12-12 1999-06-29 Black & Decker Inc. Cutting tools for drilling concrete, aggregate, masonry or the like materials
US6174111B1 (en) 1994-12-12 2001-01-16 Black & Decker Inc. Cutting tools for drilling concrete, aggregate, masonry or the like materials

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2538442A1 (fr) * 1982-12-23 1984-06-29 Charbonnages De France Taillant pour foration rotative assistee par jet
EP0114016A1 (fr) * 1982-12-23 1984-07-25 Etablissement public dit: CHARBONNAGES DE FRANCE Taillant pour foration rotative assistée par jet
US4535853A (en) * 1982-12-23 1985-08-20 Charbonnages De France Drill bit for jet assisted rotary drilling
DE3707798A1 (de) * 1987-03-11 1988-09-22 Hawera Probst Kg Hartmetall Gesteinsbohrer
US4889200A (en) * 1987-03-11 1989-12-26 Hawera Probst Gmbh+Co. Rock drill
US5918105A (en) * 1994-12-12 1999-06-29 Black & Decker Inc. Cutting tools for drilling concrete, aggregate, masonry or the like materials
US6174111B1 (en) 1994-12-12 2001-01-16 Black & Decker Inc. Cutting tools for drilling concrete, aggregate, masonry or the like materials

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