DD102768A1 - - Google Patents

Info

Publication number
DD102768A1
DD102768A1 DD169339A DD16933973A DD102768A1 DD 102768 A1 DD102768 A1 DD 102768A1 DD 169339 A DD169339 A DD 169339A DD 16933973 A DD16933973 A DD 16933973A DD 102768 A1 DD102768 A1 DD 102768A1
Authority
DD
German Democratic Republic
Application number
DD169339A
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 filed Critical
Publication of DD102768A1 publication Critical patent/DD102768A1/xx

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
    • E21B4/14—Fluid operated 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)
  • Percussive Tools And Related Accessories (AREA)
DD169339A 1972-03-10 1973-03-09 DD102768A1 (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU7201755841A SU479390A1 (ru) 1972-03-10 1972-03-10 Погружное гидроударное устройство

Publications (1)

Publication Number Publication Date
DD102768A1 true DD102768A1 (enrdf_load_html_response) 1973-12-20

Family

ID=20505505

Family Applications (1)

Application Number Title Priority Date Filing Date
DD169339A DD102768A1 (enrdf_load_html_response) 1972-03-10 1973-03-09

Country Status (7)

Country Link
US (1) US3848681A (enrdf_load_html_response)
CA (1) CA978053A (enrdf_load_html_response)
DD (1) DD102768A1 (enrdf_load_html_response)
DE (1) DE2311008C3 (enrdf_load_html_response)
FR (1) FR2175867B1 (enrdf_load_html_response)
GB (1) GB1402082A (enrdf_load_html_response)
SU (1) SU479390A1 (enrdf_load_html_response)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE277428C (enrdf_load_html_response) *
DE137430C (enrdf_load_html_response) *
US2108946A (en) * 1933-09-23 1938-02-22 Seifer Theo Hydraulic boring mechanism
US2756966A (en) * 1954-07-23 1956-07-31 Bassinger Ross Fluid actuated impact tool
US3744576A (en) * 1971-02-03 1973-07-10 B Sudnishnikov Reversible percussion device

Also Published As

Publication number Publication date
GB1402082A (en) 1975-08-06
FR2175867A1 (enrdf_load_html_response) 1973-10-26
DE2311008A1 (de) 1973-10-31
US3848681A (en) 1974-11-19
FR2175867B1 (enrdf_load_html_response) 1976-11-05
DE2311008C3 (de) 1975-09-25
CA978053A (en) 1975-11-18
DE2311008B2 (de) 1975-02-13
SU479390A1 (ru) 1977-11-25

Similar Documents

Publication Publication Date Title
FR2203180A1 (enrdf_load_html_response)
JPS4911731U (enrdf_load_html_response)
FR2175867B1 (enrdf_load_html_response)
JPS4840400B1 (enrdf_load_html_response)
JPS518418B2 (enrdf_load_html_response)
JPS5228670B2 (enrdf_load_html_response)
JPS491896A (enrdf_load_html_response)
JPS4954154U (enrdf_load_html_response)
JPS4894772U (enrdf_load_html_response)
JPS4932351U (enrdf_load_html_response)
FR2177902A1 (enrdf_load_html_response)
CH571412A5 (enrdf_load_html_response)
CH563174A5 (enrdf_load_html_response)
CH563083A5 (enrdf_load_html_response)
CH562659A5 (enrdf_load_html_response)
CH562322A5 (enrdf_load_html_response)
CH562097A5 (enrdf_load_html_response)
CH561921A (enrdf_load_html_response)
CH561486A5 (enrdf_load_html_response)
CH561361A5 (enrdf_load_html_response)
CH563179A5 (enrdf_load_html_response)
CH564636A (enrdf_load_html_response)
CH565177A5 (enrdf_load_html_response)
CH563555A5 (enrdf_load_html_response)
CH566523A5 (enrdf_load_html_response)