DE3027990C2 - - Google Patents

Info

Publication number
DE3027990C2
DE3027990C2 DE3027990A DE3027990A DE3027990C2 DE 3027990 C2 DE3027990 C2 DE 3027990C2 DE 3027990 A DE3027990 A DE 3027990A DE 3027990 A DE3027990 A DE 3027990A DE 3027990 C2 DE3027990 C2 DE 3027990C2
Authority
DE
Germany
Prior art keywords
boring machine
inclined surface
ram boring
machine according
tip
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.)
Expired
Application number
DE3027990A
Other languages
German (de)
English (en)
Other versions
DE3027990A1 (de
Inventor
Paul 5940 Lennestadt De Schmidt
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19803027990 priority Critical patent/DE3027990A1/de
Priority to JP56115866A priority patent/JPS5754692A/ja
Publication of DE3027990A1 publication Critical patent/DE3027990A1/de
Application granted granted Critical
Publication of DE3027990C2 publication Critical patent/DE3027990C2/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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/26—Drilling without earth removal, e.g. with self-propelled burrowing devices
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
DE19803027990 1980-07-24 1980-07-24 Selbstgetriebenes rammbohrgeraet Granted DE3027990A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19803027990 DE3027990A1 (de) 1980-07-24 1980-07-24 Selbstgetriebenes rammbohrgeraet
JP56115866A JPS5754692A (en) 1980-07-24 1981-07-23 Automatically propelling ram drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19803027990 DE3027990A1 (de) 1980-07-24 1980-07-24 Selbstgetriebenes rammbohrgeraet

Publications (2)

Publication Number Publication Date
DE3027990A1 DE3027990A1 (de) 1982-03-04
DE3027990C2 true DE3027990C2 (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) 1988-08-04

Family

ID=6107961

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19803027990 Granted DE3027990A1 (de) 1980-07-24 1980-07-24 Selbstgetriebenes rammbohrgeraet

Country Status (2)

Country Link
JP (1) JPS5754692A (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)
DE (1) DE3027990A1 (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9002368U1 (de) * 1990-03-01 1991-01-03 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim Vortriebseinheit

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU578637B2 (en) * 1983-12-03 1988-11-03 N.L. Petroleum Products Ltd. Rotary drill bits and cutting elements for such bits
CA1255651A (en) * 1985-04-05 1989-06-13 William J. Mcdonald Steering and control system for percussion boring tools
JPH0260655A (ja) * 1988-08-26 1990-03-01 Mitsubishi Electric Corp 血液保存装置
DE3911467A1 (de) * 1989-04-08 1990-10-11 Tracto Technik Selbstantreibbares rammbohrgeraet, insbesondere fuer die herstellung von rohrfoermigen erdbohrungen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2242605C3 (de) * 1972-08-30 1984-06-07 Paul 5940 Lennestadt Schmidt Rammbohrgeräte

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9002368U1 (de) * 1990-03-01 1991-01-03 Bilfinger + Berger Bauaktiengesellschaft, 6800 Mannheim Vortriebseinheit

Also Published As

Publication number Publication date
DE3027990A1 (de) 1982-03-04
JPS6339760B2 (c_deeref_Disk_and_Scratch_Disk_Pools_and_Their_Defaults.html) 1988-08-08
JPS5754692A (en) 1982-04-01

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8363 Opposition against the patent
8331 Complete revocation