DE1217903B - Bohrkopf - Google Patents

Bohrkopf

Info

Publication number
DE1217903B
DE1217903B DEB81274A DEB0081274A DE1217903B DE 1217903 B DE1217903 B DE 1217903B DE B81274 A DEB81274 A DE B81274A DE B0081274 A DEB0081274 A DE B0081274A DE 1217903 B DE1217903 B DE 1217903B
Authority
DE
Germany
Prior art keywords
drill head
metal plate
cuttings
central
hard metal
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.)
Pending
Application number
DEB81274A
Other languages
German (de)
English (en)
Inventor
Martin Stoll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beteiligungs und Patentverwaltungs GmbH
Original Assignee
Beteiligungs und Patentverwaltungs 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 Beteiligungs und Patentverwaltungs GmbH filed Critical Beteiligungs und Patentverwaltungs GmbH
Priority to DEB81274A priority Critical patent/DE1217903B/de
Priority to CH444466A priority patent/CH454064A/de
Priority to NL6604364A priority patent/NL6604364A/xx
Publication of DE1217903B publication Critical patent/DE1217903B/de
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28D—WORKING STONE OR STONE-LIKE MATERIALS
    • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
    • B28D1/26—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by impact tools, e.g. by chisels or other tools having a cutting edge
    • 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
    • E21B10/38—Percussion drill bits characterised by conduits or nozzles for drilling fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
DEB81274A 1965-04-02 1965-04-02 Bohrkopf Pending DE1217903B (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DEB81274A DE1217903B (de) 1965-04-02 1965-04-02 Bohrkopf
CH444466A CH454064A (de) 1965-04-02 1966-03-28 Bohrkopf
NL6604364A NL6604364A (enExample) 1965-04-02 1966-04-01

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB81274A DE1217903B (de) 1965-04-02 1965-04-02 Bohrkopf

Publications (1)

Publication Number Publication Date
DE1217903B true DE1217903B (de) 1966-06-02

Family

ID=6981029

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB81274A Pending DE1217903B (de) 1965-04-02 1965-04-02 Bohrkopf

Country Status (3)

Country Link
CH (1) CH454064A (enExample)
DE (1) DE1217903B (enExample)
NL (1) NL6604364A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1255065B (de) * 1966-07-30 1967-11-30 Richard Karnebogen Schlagbohrkopf fuer pressluftbetriebene Versenkhaemmer
EP0048908A1 (de) * 1980-09-26 1982-04-07 Hawera Probst GmbH + Co. Bohrer, insbesondere Drehschlagbohrer

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4165790A (en) * 1976-12-10 1979-08-28 Fansteel Inc. Roof drill bit

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507221A (en) * 1946-08-19 1950-05-09 Phipps Orville Single edge percussion bit

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2507221A (en) * 1946-08-19 1950-05-09 Phipps Orville Single edge percussion bit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1255065B (de) * 1966-07-30 1967-11-30 Richard Karnebogen Schlagbohrkopf fuer pressluftbetriebene Versenkhaemmer
EP0048908A1 (de) * 1980-09-26 1982-04-07 Hawera Probst GmbH + Co. Bohrer, insbesondere Drehschlagbohrer

Also Published As

Publication number Publication date
NL6604364A (enExample) 1966-10-03
CH454064A (de) 1968-04-15

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