DE3421171A1 - Tiefbohrmeissel - Google Patents

Tiefbohrmeissel

Info

Publication number
DE3421171A1
DE3421171A1 DE3421171A DE3421171A DE3421171A1 DE 3421171 A1 DE3421171 A1 DE 3421171A1 DE 3421171 A DE3421171 A DE 3421171A DE 3421171 A DE3421171 A DE 3421171A DE 3421171 A1 DE3421171 A1 DE 3421171A1
Authority
DE
Germany
Prior art keywords
spherical
drill
deep drilling
drilling bit
drill head
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.)
Granted
Application number
DE3421171A
Other languages
German (de)
English (en)
Other versions
DE3421171C2 (enExample
Inventor
Wolfgang 4320 Hattingen Niederhagemann
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.)
JOSEPH EICH KG MASCHF
Original Assignee
JOSEPH EICH KG MASCHF
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 JOSEPH EICH KG MASCHF filed Critical JOSEPH EICH KG MASCHF
Priority to DE3421171A priority Critical patent/DE3421171A1/de
Publication of DE3421171A1 publication Critical patent/DE3421171A1/de
Application granted granted Critical
Publication of DE3421171C2 publication Critical patent/DE3421171C2/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
    • E21B10/08—Roller bits
    • E21B10/20—Roller bits characterised by detachable or adjustable parts, e.g. legs or axles
    • 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
    • E21B10/08—Roller bits
    • E21B10/22—Roller bits characterised by bearing, lubrication or sealing details

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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
DE3421171A 1984-06-07 1984-06-07 Tiefbohrmeissel Granted DE3421171A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3421171A DE3421171A1 (de) 1984-06-07 1984-06-07 Tiefbohrmeissel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3421171A DE3421171A1 (de) 1984-06-07 1984-06-07 Tiefbohrmeissel

Publications (2)

Publication Number Publication Date
DE3421171A1 true DE3421171A1 (de) 1986-06-26
DE3421171C2 DE3421171C2 (enExample) 1987-07-23

Family

ID=6237805

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3421171A Granted DE3421171A1 (de) 1984-06-07 1984-06-07 Tiefbohrmeissel

Country Status (1)

Country Link
DE (1) DE3421171A1 (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4762189A (en) * 1987-05-28 1988-08-09 Tatum David M Seal and seal shield assembly for rotary drill bits
RU2191245C1 (ru) * 2001-07-17 2002-10-20 Буткин Владимир Дмитриевич Опорное устройство бурового шарошечного долота

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1729062A (en) * 1927-08-15 1929-09-24 Reed Roller Bit Co Roller-cutter mounting
US1762504A (en) * 1927-08-15 1930-06-10 Reed Roller Bit Co Roller bit
US2221242A (en) * 1939-01-28 1940-11-12 I H Lyons Drill
US3047344A (en) * 1959-04-07 1962-07-31 Neyrpic Ets Drilling tools for turbine drills

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1729062A (en) * 1927-08-15 1929-09-24 Reed Roller Bit Co Roller-cutter mounting
US1762504A (en) * 1927-08-15 1930-06-10 Reed Roller Bit Co Roller bit
US2221242A (en) * 1939-01-28 1940-11-12 I H Lyons Drill
US3047344A (en) * 1959-04-07 1962-07-31 Neyrpic Ets Drilling tools for turbine drills

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4762189A (en) * 1987-05-28 1988-08-09 Tatum David M Seal and seal shield assembly for rotary drill bits
RU2191245C1 (ru) * 2001-07-17 2002-10-20 Буткин Владимир Дмитриевич Опорное устройство бурового шарошечного долота

Also Published As

Publication number Publication date
DE3421171C2 (enExample) 1987-07-23

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee