DE227019C - - Google Patents

Info

Publication number
DE227019C
DE227019C DENDAT227019D DE227019DA DE227019C DE 227019 C DE227019 C DE 227019C DE NDAT227019 D DENDAT227019 D DE NDAT227019D DE 227019D A DE227019D A DE 227019DA DE 227019 C DE227019 C DE 227019C
Authority
DE
Germany
Prior art keywords
compressed air
pressure
guide rod
drill
hammer drill
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
DENDAT227019D
Other languages
German (de)
English (en)
Publication of DE227019C publication Critical patent/DE227019C/de
Active legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B19/00Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
    • E21B19/08Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
    • E21B19/086Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with a fluid-actuated cylinder

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)
DENDAT227019D Active DE227019C (forum.php)

Publications (1)

Publication Number Publication Date
DE227019C true DE227019C (forum.php)

Family

ID=487512

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT227019D Active DE227019C (forum.php)

Country Status (1)

Country Link
DE (1) DE227019C (forum.php)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7020094B2 (en) 2000-06-13 2006-03-28 Siemens Aktiengesellschaft Method and system for transmitting at least one client signal within a server signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7020094B2 (en) 2000-06-13 2006-03-28 Siemens Aktiengesellschaft Method and system for transmitting at least one client signal within a server signal

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