NL7005693A - - Google Patents

Info

Publication number
NL7005693A
NL7005693A NL7005693A NL7005693A NL7005693A NL 7005693 A NL7005693 A NL 7005693A NL 7005693 A NL7005693 A NL 7005693A NL 7005693 A NL7005693 A NL 7005693A NL 7005693 A NL7005693 A NL 7005693A
Authority
NL
Netherlands
Application number
NL7005693A
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 NL7005693A publication Critical patent/NL7005693A/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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/10—Valve arrangements in drilling-fluid circulation systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/02—Check valves with guided rigid valve members
    • F16K15/06—Check valves with guided rigid valve members with guided stems
    • F16K15/063—Check valves with guided rigid valve members with guided stems the valve being loaded by a spring

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Details Of Valves (AREA)
NL7005693A 1969-04-22 1970-04-20 NL7005693A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81826169A 1969-04-22 1969-04-22

Publications (1)

Publication Number Publication Date
NL7005693A true NL7005693A (enrdf_load_stackoverflow) 1970-10-26

Family

ID=25225088

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7005693A NL7005693A (enrdf_load_stackoverflow) 1969-04-22 1970-04-20

Country Status (6)

Country Link
JP (1) JPS5022962B1 (enrdf_load_stackoverflow)
AT (1) AT297628B (enrdf_load_stackoverflow)
DE (1) DE2017939B2 (enrdf_load_stackoverflow)
FR (1) FR2039358B1 (enrdf_load_stackoverflow)
GB (1) GB1266306A (enrdf_load_stackoverflow)
NL (1) NL7005693A (enrdf_load_stackoverflow)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2739801A1 (de) * 1977-09-03 1979-03-15 Waletzko Alfred Apparatebau Rueckflussverhinderer, insbesondere fuer rohrtrenner
FR2502683A1 (fr) * 1981-03-24 1982-10-01 Flopetrol Procede et equipement de forage d'une couche souterraine contenant des hydrocarbures, sans utilisation de boue de forage
GB8326961D0 (en) * 1983-10-08 1983-11-09 Hogarth P J M Bore-hole drilling device
DE102011082728A1 (de) * 2011-09-15 2013-03-21 Robert Bosch Gmbh Rückschlagventil, insbesondere für eine Kraftstoffhochdruckpumpe, und Pumpe mit Rückschlagventil
CN103234067B (zh) * 2013-05-10 2015-11-11 四川宏华石油设备有限公司 一种用于井下工具的单向阀
CN112555467B (zh) * 2020-12-07 2024-11-26 贵州高峰石油机械股份有限公司 一种侧装浮阀芯及装配方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1592988A (en) * 1926-07-20 Valve
US2023189A (en) * 1932-01-23 1935-12-03 George J Armstrong Float valve
US2289946A (en) * 1940-09-06 1942-07-14 Weatherhead Co Needle check valve
US2977980A (en) * 1958-04-22 1961-04-04 Axel R Scholin Unidirectional valve for metering pumps and the like
BE627369A (enrdf_load_stackoverflow) * 1962-01-22 1900-01-01

Also Published As

Publication number Publication date
DE2017939C3 (enrdf_load_stackoverflow) 1973-10-18
DE2017939B2 (de) 1973-03-22
DE2017939A1 (de) 1971-01-14
GB1266306A (enrdf_load_stackoverflow) 1972-03-08
JPS5022962B1 (enrdf_load_stackoverflow) 1975-08-04
FR2039358A1 (enrdf_load_stackoverflow) 1971-01-15
FR2039358B1 (enrdf_load_stackoverflow) 1973-04-06
AT297628B (de) 1972-04-10

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