DE29507898U1 - Verlorener Rammring - Google Patents

Verlorener Rammring

Info

Publication number
DE29507898U1
DE29507898U1 DE29507898U DE29507898U DE29507898U1 DE 29507898 U1 DE29507898 U1 DE 29507898U1 DE 29507898 U DE29507898 U DE 29507898U DE 29507898 U DE29507898 U DE 29507898U DE 29507898 U1 DE29507898 U1 DE 29507898U1
Authority
DE
Germany
Prior art keywords
ram ring
lost
lost ram
ring
ram
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 - Lifetime
Application number
DE29507898U
Other languages
English (en)
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.)
BUCHHOLZ RUDOLF 88633 HEILIGENBERG DE
Original Assignee
BUCHHOLZ RUDOLF 88633 HEILIGENBERG DE
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 BUCHHOLZ RUDOLF 88633 HEILIGENBERG DE filed Critical BUCHHOLZ RUDOLF 88633 HEILIGENBERG DE
Priority to DE29507898U priority Critical patent/DE29507898U1/de
Publication of DE29507898U1 publication Critical patent/DE29507898U1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • E21B10/40—Percussion drill bits with leading portion
    • 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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/06—Releasing-joints, e.g. safety joints

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)
DE29507898U 1995-05-12 1995-05-12 Verlorener Rammring Expired - Lifetime DE29507898U1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29507898U DE29507898U1 (de) 1995-05-12 1995-05-12 Verlorener Rammring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE29507898U DE29507898U1 (de) 1995-05-12 1995-05-12 Verlorener Rammring

Publications (1)

Publication Number Publication Date
DE29507898U1 true DE29507898U1 (de) 1995-09-28

Family

ID=8007966

Family Applications (1)

Application Number Title Priority Date Filing Date
DE29507898U Expired - Lifetime DE29507898U1 (de) 1995-05-12 1995-05-12 Verlorener Rammring

Country Status (1)

Country Link
DE (1) DE29507898U1 (de)

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Legal Events

Date Code Title Description
R086 Non-binding declaration of licensing interest
R207 Utility model specification

Effective date: 19951109

R156 Lapse of ip right after 3 years

Effective date: 19990302