DE175778C - - Google Patents

Info

Publication number
DE175778C
DE175778C DENDAT175778D DE175778DA DE175778C DE 175778 C DE175778 C DE 175778C DE NDAT175778 D DENDAT175778 D DE NDAT175778D DE 175778D A DE175778D A DE 175778DA DE 175778 C DE175778 C DE 175778C
Authority
DE
Germany
Prior art keywords
lever
piston
piston rod
nose
cylinder
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
DENDAT175778D
Other languages
German (de)
English (en)
Publication of DE175778C publication Critical patent/DE175778C/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
    • E21B4/00—Drives for drilling, used in the borehole
    • E21B4/06—Down-hole impacting means, e.g. hammers
    • E21B4/08—Down-hole impacting means, e.g. hammers impact being obtained by gravity only, e.g. with lost-motion connection

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)
  • Fluid-Damping Devices (AREA)
DENDAT175778D Active DE175778C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE175778C true DE175778C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=440392

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT175778D Active DE175778C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE175778C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1142143B (de) * 1959-04-18 1963-01-10 Pierre Grospas Stossbohrgeraet mit staendiger Spuelung
FR2458362A1 (fr) * 1979-06-05 1981-01-02 Sauer Transmissions Marteau alternatif, notamment de battage ou de forage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1142143B (de) * 1959-04-18 1963-01-10 Pierre Grospas Stossbohrgeraet mit staendiger Spuelung
FR2458362A1 (fr) * 1979-06-05 1981-01-02 Sauer Transmissions Marteau alternatif, notamment de battage ou de forage

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