GB1266306A - - Google Patents

Info

Publication number
GB1266306A
GB1266306A GB1266306DA GB1266306A GB 1266306 A GB1266306 A GB 1266306A GB 1266306D A GB1266306D A GB 1266306DA GB 1266306 A GB1266306 A GB 1266306A
Authority
GB
United Kingdom
Prior art keywords
valve
stem
seat
sub
sectioned
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.)
Expired
Application number
Other languages
English (en)
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 GB1266306A publication Critical patent/GB1266306A/en
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
    • 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)
GB1266306D 1969-04-22 1970-03-02 Expired GB1266306A (de)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1266306A true GB1266306A (de) 1972-03-08

Family

ID=25225088

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1266306D Expired GB1266306A (de) 1969-04-22 1970-03-02

Country Status (6)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147641A (en) * 1983-10-08 1985-05-15 Peter John Michael Hogarth Borehole drilling device
CN103234067A (zh) * 2013-05-10 2013-08-07 四川宏华石油设备有限公司 一种用于井下工具的单向阀

Families Citing this family (3)

* 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
DE102011082728A1 (de) * 2011-09-15 2013-03-21 Robert Bosch Gmbh Rückschlagventil, insbesondere für eine Kraftstoffhochdruckpumpe, und Pumpe mit Rückschlagventil

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 (de) * 1962-01-22 1900-01-01

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2147641A (en) * 1983-10-08 1985-05-15 Peter John Michael Hogarth Borehole drilling device
CN103234067A (zh) * 2013-05-10 2013-08-07 四川宏华石油设备有限公司 一种用于井下工具的单向阀
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

Also Published As

Publication number Publication date
FR2039358B1 (de) 1973-04-06
FR2039358A1 (de) 1971-01-15
JPS5022962B1 (de) 1975-08-04
DE2017939C3 (de) 1973-10-18
DE2017939A1 (de) 1971-01-14
AT297628B (de) 1972-04-10
NL7005693A (de) 1970-10-26
DE2017939B2 (de) 1973-03-22

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee