GB2421773B - Sealing of valves - Google Patents

Sealing of valves

Info

Publication number
GB2421773B
GB2421773B GB0526146A GB0526146A GB2421773B GB 2421773 B GB2421773 B GB 2421773B GB 0526146 A GB0526146 A GB 0526146A GB 0526146 A GB0526146 A GB 0526146A GB 2421773 B GB2421773 B GB 2421773B
Authority
GB
United Kingdom
Prior art keywords
valves
sealing
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 - Fee Related
Application number
GB0526146A
Other versions
GB0526146D0 (en
GB2421773A (en
Inventor
Robert Peter Enston
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB0526146D0 publication Critical patent/GB0526146D0/en
Publication of GB2421773A publication Critical patent/GB2421773A/en
Application granted granted Critical
Publication of GB2421773B publication Critical patent/GB2421773B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details
    • F16K3/36—Features relating to lubrication
    • 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
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L41/00—Branching pipes; Joining pipes to walls
    • F16L41/04—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor
    • F16L41/06—Tapping pipe walls, i.e. making connections through the walls of pipes while they are carrying fluids; Fittings therefor making use of attaching means embracing the pipe

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lift Valve (AREA)
  • Valve Housings (AREA)
GB0526146A 2003-05-14 2003-05-14 Sealing of valves Expired - Fee Related GB2421773B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0311072A GB2401667B (en) 2003-05-14 2003-05-14 Sealing of valves

Publications (3)

Publication Number Publication Date
GB0526146D0 GB0526146D0 (en) 2006-02-01
GB2421773A GB2421773A (en) 2006-07-05
GB2421773B true GB2421773B (en) 2007-03-21

Family

ID=9958050

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0526146A Expired - Fee Related GB2421773B (en) 2003-05-14 2003-05-14 Sealing of valves
GB0311072A Expired - Fee Related GB2401667B (en) 2003-05-14 2003-05-14 Sealing of valves

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0311072A Expired - Fee Related GB2401667B (en) 2003-05-14 2003-05-14 Sealing of valves

Country Status (1)

Country Link
GB (2) GB2421773B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0813752D0 (en) * 2008-07-28 2008-09-03 Harrison David G Improvements in or relating to valves

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1201468A (en) * 1967-03-31 1970-08-05 Walter Slingsby & Company Ltd Improvements in underpressure pipe drilling and connection mounting operations
GB1418739A (en) * 1972-03-31 1975-12-24 Pont A Mousson Method for making a branch connection to a pipe under pressure
GB1487383A (en) * 1975-03-20 1977-09-28 British Gas Corp Under pressure drilling devices

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3414002A (en) * 1966-06-17 1968-12-03 Alexander S. Volpin Automatic two-way lubricant-sealed plug valve
GB2350412A (en) * 1999-05-22 2000-11-29 Robert Peter Enston Freeing of seized valves

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1201468A (en) * 1967-03-31 1970-08-05 Walter Slingsby & Company Ltd Improvements in underpressure pipe drilling and connection mounting operations
GB1418739A (en) * 1972-03-31 1975-12-24 Pont A Mousson Method for making a branch connection to a pipe under pressure
GB1487383A (en) * 1975-03-20 1977-09-28 British Gas Corp Under pressure drilling devices

Also Published As

Publication number Publication date
GB2401667B (en) 2006-08-30
GB2401667A (en) 2004-11-17
GB0311072D0 (en) 2003-06-18
GB0526146D0 (en) 2006-02-01
GB2421773A (en) 2006-07-05

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Legal Events

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

Effective date: 20090514