DE100069C - - Google Patents

Info

Publication number
DE100069C
DE100069C DENDAT100069D DE100069DA DE100069C DE 100069 C DE100069 C DE 100069C DE NDAT100069 D DENDAT100069 D DE NDAT100069D DE 100069D A DE100069D A DE 100069DA DE 100069 C DE100069 C DE 100069C
Authority
DE
Germany
Prior art keywords
balancer
drills
collar
suspended
rods
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.)
Active
Application number
DENDAT100069D
Other languages
German (de)
English (en)
Publication of DE100069C publication Critical patent/DE100069C/de
Active 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
    • E21B1/00—Percussion drilling
    • E21B1/02—Surface drives for drop hammers or percussion drilling, e.g. with a cable

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)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
DENDAT100069D Active DE100069C (cs)

Publications (1)

Publication Number Publication Date
DE100069C true DE100069C (cs)

Family

ID=370915

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT100069D Active DE100069C (cs)

Country Status (1)

Country Link
DE (1) DE100069C (cs)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5486987A (en) * 1995-01-05 1996-01-23 Fritz, Jr.; Jack D. Boat utility light

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5486987A (en) * 1995-01-05 1996-01-23 Fritz, Jr.; Jack D. Boat utility light

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