GB2278186B - A unidirectional valve - Google Patents

A unidirectional valve

Info

Publication number
GB2278186B
GB2278186B GB9414365A GB9414365A GB2278186B GB 2278186 B GB2278186 B GB 2278186B GB 9414365 A GB9414365 A GB 9414365A GB 9414365 A GB9414365 A GB 9414365A GB 2278186 B GB2278186 B GB 2278186B
Authority
GB
United Kingdom
Prior art keywords
unidirectional valve
unidirectional
valve
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 - Lifetime
Application number
GB9414365A
Other versions
GB2278186A (en
GB9414365D0 (en
Inventor
Graham Clydesdale
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.)
DB STRATABIT Ltd
Original Assignee
DB STRATABIT Ltd
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
Priority claimed from GB909020038A external-priority patent/GB9020038D0/en
Application filed by DB STRATABIT Ltd filed Critical DB STRATABIT Ltd
Publication of GB9414365D0 publication Critical patent/GB9414365D0/en
Publication of GB2278186A publication Critical patent/GB2278186A/en
Application granted granted Critical
Publication of GB2278186B publication Critical patent/GB2278186B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F16K15/04—Check valves with guided rigid valve members shaped as balls
    • 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
    • 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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors

Landscapes

  • Engineering & Computer Science (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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Valve Housings (AREA)
GB9414365A 1990-09-13 1991-09-13 A unidirectional valve Expired - Lifetime GB2278186B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB909020038A GB9020038D0 (en) 1990-09-13 1990-09-13 Corebarrel
GB9119565A GB2248257B (en) 1990-09-13 1991-09-13 Corebarrel

Publications (3)

Publication Number Publication Date
GB9414365D0 GB9414365D0 (en) 1994-09-07
GB2278186A GB2278186A (en) 1994-11-23
GB2278186B true GB2278186B (en) 1995-05-03

Family

ID=26297647

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9414365A Expired - Lifetime GB2278186B (en) 1990-09-13 1991-09-13 A unidirectional valve

Country Status (1)

Country Link
GB (1) GB2278186B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2006213966B2 (en) * 2001-06-11 2009-01-22 C-Dax Limited Improvements in tanks
AU4449102A (en) 2001-06-11 2002-12-12 C-Dax Systems Limited Improvements in tanks
GB2392660B (en) * 2001-06-11 2005-08-17 C Dax Systems Ltd A tank with a removable outlet valve
DE20311689U1 (en) * 2003-07-28 2003-10-23 Uhde High Pressure Technologies GmbH, 58093 Hagen High pressure pump valve with reversible valve seats
DE102016120118A1 (en) 2016-10-21 2018-04-26 Hilite Germany Gmbh Electromagnetic pressure control valve
DE102017121443A1 (en) 2017-02-13 2018-08-16 ECO Holding 1 GmbH Check valve for a connecting rod of an internal combustion engine with variable compression and connecting rod with such a check valve

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB739930A (en) * 1953-02-03 1955-11-02 Gratzmuller Jean Louis Non-return ball valve for reciprocating hydraulic pumps
GB766921A (en) * 1954-09-08 1957-01-30 Victor Charles Gorman Improvements in or relating to lubricant nipples
GB1320892A (en) * 1969-04-11 1973-06-20 Munro J M Central heating apparatus
US4068680A (en) * 1976-07-21 1978-01-17 Robertshaw Controls Company Self-contained vent valve unit and system utilizing the same
GB1532914A (en) * 1976-07-24 1978-11-22 Tip Top Saar Ges Fuer Ind Vulk Sealing plug for a rock borehole or the like
GB2084295A (en) * 1980-09-10 1982-04-07 Mcelhatton James Radiator Valve Device
US4601305A (en) * 1984-11-29 1986-07-22 Nordskog Robert A Compact gas compressor check valve
EP0212497A1 (en) * 1985-08-09 1987-03-04 Alberto Bazan Anti-stall ball-check valve

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB739930A (en) * 1953-02-03 1955-11-02 Gratzmuller Jean Louis Non-return ball valve for reciprocating hydraulic pumps
GB766921A (en) * 1954-09-08 1957-01-30 Victor Charles Gorman Improvements in or relating to lubricant nipples
GB1320892A (en) * 1969-04-11 1973-06-20 Munro J M Central heating apparatus
US4068680A (en) * 1976-07-21 1978-01-17 Robertshaw Controls Company Self-contained vent valve unit and system utilizing the same
GB1532914A (en) * 1976-07-24 1978-11-22 Tip Top Saar Ges Fuer Ind Vulk Sealing plug for a rock borehole or the like
GB2084295A (en) * 1980-09-10 1982-04-07 Mcelhatton James Radiator Valve Device
US4601305A (en) * 1984-11-29 1986-07-22 Nordskog Robert A Compact gas compressor check valve
EP0212497A1 (en) * 1985-08-09 1987-03-04 Alberto Bazan Anti-stall ball-check valve

Also Published As

Publication number Publication date
GB2278186A (en) 1994-11-23
GB9414365D0 (en) 1994-09-07

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20110912