DE3545758C2 - - Google Patents

Info

Publication number
DE3545758C2
DE3545758C2 DE19853545758 DE3545758A DE3545758C2 DE 3545758 C2 DE3545758 C2 DE 3545758C2 DE 19853545758 DE19853545758 DE 19853545758 DE 3545758 A DE3545758 A DE 3545758A DE 3545758 C2 DE3545758 C2 DE 3545758C2
Authority
DE
Germany
Prior art keywords
face
drill
elevations
drill head
section
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.)
Revoked
Application number
DE19853545758
Other languages
German (de)
English (en)
Other versions
DE3545758A1 (de
Inventor
Friedrich Wilhelm 4320 Hattingen De Kunat
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.)
Wengeler & Kalthoff Hammerwerke & Co Kg 5810 Witten De GmbH
Original Assignee
Wengeler & Kalthoff Hammerwerke & Co Kg 5810 Witten De 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 Wengeler & Kalthoff Hammerwerke & Co Kg 5810 Witten De GmbH filed Critical Wengeler & Kalthoff Hammerwerke & Co Kg 5810 Witten De GmbH
Priority to DE19853545758 priority Critical patent/DE3545758A1/de
Publication of DE3545758A1 publication Critical patent/DE3545758A1/de
Application granted granted Critical
Publication of DE3545758C2 publication Critical patent/DE3545758C2/de
Granted 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
    • E21B10/36—Percussion drill bits
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1527—Taphole forming equipment, e.g. boring machines, piercing tools

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (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)
  • General Engineering & Computer Science (AREA)
  • Drilling Tools (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
DE19853545758 1985-12-21 1985-12-21 Bohrer zum aufbohren der abstichloecher von hochoefen Granted DE3545758A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19853545758 DE3545758A1 (de) 1985-12-21 1985-12-21 Bohrer zum aufbohren der abstichloecher von hochoefen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853545758 DE3545758A1 (de) 1985-12-21 1985-12-21 Bohrer zum aufbohren der abstichloecher von hochoefen

Publications (2)

Publication Number Publication Date
DE3545758A1 DE3545758A1 (de) 1987-06-25
DE3545758C2 true DE3545758C2 (https=) 1990-06-28

Family

ID=6289374

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853545758 Granted DE3545758A1 (de) 1985-12-21 1985-12-21 Bohrer zum aufbohren der abstichloecher von hochoefen

Country Status (1)

Country Link
DE (1) DE3545758A1 (https=)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9207632U1 (de) * 1992-06-05 1992-08-27 Willi Wader GmbH, 5608 Radevormwald Bohrkopf zum Bohren von Hochofen-Stichlöchern

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2725216A (en) * 1951-07-20 1955-11-29 Philip B Brown Drilling bit
US4069880A (en) * 1973-05-24 1978-01-24 Kennametal Inc. Excavation tool
US4047514A (en) * 1976-10-12 1977-09-13 Toyo Kogyo Co., Ltd. Furnace taphole drilling bit
DE2824958C3 (de) * 1978-06-07 1985-06-05 Fa. Willi Wader, 5608 Radevormwald Verfahren zum Herstellen einer Monoblock-Bohrstange mit sechs gleich großen Schneiden
NL191520C (nl) * 1980-05-12 1995-08-21 Hoogovens Groep Bv Tapgatboor voor een hoogoven.
SE448108C (sv) * 1983-04-05 1989-08-14 Sandvik Ab Bergborr foer slagborrning av mindre haal innefattande snedstaellda periferistift

Also Published As

Publication number Publication date
DE3545758A1 (de) 1987-06-25

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8125 Change of the main classification

Ipc: C21B 7/12

D2 Grant after examination
8363 Opposition against the patent
8331 Complete revocation