FR2157366A5 - - Google Patents

Info

Publication number
FR2157366A5
FR2157366A5 FR7235662A FR7235662A FR2157366A5 FR 2157366 A5 FR2157366 A5 FR 2157366A5 FR 7235662 A FR7235662 A FR 7235662A FR 7235662 A FR7235662 A FR 7235662A FR 2157366 A5 FR2157366 A5 FR 2157366A5
Authority
FR
France
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.)
Expired
Application number
FR7235662A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gebrueder Boehler and Co AG
Original Assignee
Gebrueder Boehler and Co AG
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 by Gebrueder Boehler and Co AG filed Critical Gebrueder Boehler and Co AG
Application granted granted Critical
Publication of FR2157366A5 publication Critical patent/FR2157366A5/fr
Expired 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
    • E21B4/14—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)
  • Lift Valve (AREA)
FR7235662A 1971-10-19 1972-10-09 Expired FR2157366A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT901471A AT313219B (de) 1971-10-19 1971-10-19 Vorrichtung zur automatischen Steuerung der Druckmittelzufuhr zu einem Schlagbohrhammer

Publications (1)

Publication Number Publication Date
FR2157366A5 true FR2157366A5 (fr) 1973-06-01

Family

ID=3610440

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7235662A Expired FR2157366A5 (fr) 1971-10-19 1972-10-09

Country Status (8)

Country Link
US (1) US3794290A (fr)
AT (1) AT313219B (fr)
BE (1) BE789993A (fr)
CH (1) CH538596A (fr)
DE (1) DE2235618C3 (fr)
FR (1) FR2157366A5 (fr)
IT (1) IT966388B (fr)
SE (1) SE398457B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4430073A (en) 1982-05-03 1984-02-07 Bemis Manufacturing Company Surgical suction probe with reversible valve
US7182094B2 (en) * 2004-05-12 2007-02-27 Scott Wu Air nozzle for inflating cushion

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2121268A (en) * 1937-07-16 1938-06-21 Donald U Shaffer Valve for well testing tools
US2509470A (en) * 1946-07-20 1950-05-30 Baker Oil Tools Inc Control valve
US2553991A (en) * 1946-08-06 1951-05-22 H B Salter Mfg Company Drain control valve
US2690807A (en) * 1953-04-27 1954-10-05 Johnston Testers Inc Combination oil well tool
US2901001A (en) * 1955-03-18 1959-08-25 Johnston Testers Inc Hydraulic tester and shut-in pressure tool
US2944793A (en) * 1956-10-19 1960-07-12 Baker Oil Tools Inc Drill pipe float valve apparatus
US2906493A (en) * 1957-12-16 1959-09-29 Jersey Prod Res Co Washover pipe fluid by-pass sub
US3151839A (en) * 1962-04-16 1964-10-06 Cicero C Brown Two-way flapper-type valve
DE1950508C3 (de) * 1969-10-07 1975-01-09 Fma Pokorny Frankfurter Maschinenbau Ag, 6000 Frankfurt Druckluftbetriebene Tieflochbohrhämmer
US3667505A (en) * 1971-01-27 1972-06-06 Cook Testing Co Rotary ball valve for wells

Also Published As

Publication number Publication date
BE789993A (fr) 1973-02-01
US3794290A (en) 1974-02-26
CH538596A (de) 1973-06-30
SE398457B (sv) 1977-12-27
AT313219B (de) 1974-02-11
IT966388B (it) 1974-02-11
DE2235618C3 (de) 1982-02-25
DE2235618B2 (de) 1981-06-11
DE2235618A1 (de) 1973-05-30

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Legal Events

Date Code Title Description
ST Notification of lapse