DE138319C - - Google Patents

Info

Publication number
DE138319C
DE138319C DENDAT138319D DE138319DA DE138319C DE 138319 C DE138319 C DE 138319C DE NDAT138319 D DENDAT138319 D DE NDAT138319D DE 138319D A DE138319D A DE 138319DA DE 138319 C DE138319 C DE 138319C
Authority
DE
Germany
Prior art keywords
spring
valve
piston
water
hollow body
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
DENDAT138319D
Other languages
German (de)
English (en)
Publication of DE138319C publication Critical patent/DE138319C/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

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)
DENDAT138319D Active DE138319C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE138319C true DE138319C (enrdf_load_stackoverflow)

Family

ID=406141

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT138319D Active DE138319C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE138319C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343565A1 (de) * 1983-12-01 1985-06-13 Ing. Günter Klemm, Spezialunternehmen für Bohrtechnik, 5962 Drolshagen Tieflochhammer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3343565A1 (de) * 1983-12-01 1985-06-13 Ing. Günter Klemm, Spezialunternehmen für Bohrtechnik, 5962 Drolshagen Tieflochhammer

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