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GB2231391B - A one way air admittance valve - Google Patents

A one way air admittance valve

Info

Publication number
GB2231391B
GB2231391B GB9007884A GB9007884A GB2231391B GB 2231391 B GB2231391 B GB 2231391B GB 9007884 A GB9007884 A GB 9007884A GB 9007884 A GB9007884 A GB 9007884A GB 2231391 B GB2231391 B GB 2231391B
Authority
GB
United Kingdom
Prior art keywords
way air
admittance valve
air admittance
valve
way
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
GB9007884A
Other versions
GB9007884D0 (en
GB2231391A (en
Inventor
Patrick Daniel Frawley
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
Priority claimed from GB898907860A external-priority patent/GB8907860D0/en
Priority claimed from GB898923980A external-priority patent/GB8923980D0/en
Application filed by Individual filed Critical Individual
Publication of GB9007884D0 publication Critical patent/GB9007884D0/en
Publication of GB2231391A publication Critical patent/GB2231391A/en
Application granted granted Critical
Publication of GB2231391B publication Critical patent/GB2231391B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/12—Plumbing installations for waste water; Basins or fountains connected thereto; Sinks
    • E03C1/122—Pipe-line systems for waste water in building
    • 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
    • F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
    • F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
    • F16K17/12—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side weight-loaded
    • 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
    • F16K24/00—Devices, e.g. valves, for venting or aerating enclosures
    • F16K24/06—Devices, e.g. valves, for venting or aerating enclosures for aerating only

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Check Valves (AREA)
GB9007884A 1989-04-07 1990-04-06 A one way air admittance valve Expired - Fee Related GB2231391B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898907860A GB8907860D0 (en) 1989-04-07 1989-04-07 One way air admittance valve
GB898923980A GB8923980D0 (en) 1989-10-25 1989-10-25 One way air admittance valve

Publications (3)

Publication Number Publication Date
GB9007884D0 GB9007884D0 (en) 1990-06-06
GB2231391A GB2231391A (en) 1990-11-14
GB2231391B true GB2231391B (en) 1993-03-03

Family

ID=26295181

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9007884A Expired - Fee Related GB2231391B (en) 1989-04-07 1990-04-06 A one way air admittance valve

Country Status (1)

Country Link
GB (1) GB2231391B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8913009D0 (en) * 1989-06-06 1989-07-26 Frawley Patrick D One way air admittance valve
EP2224066A1 (en) * 2009-02-25 2010-09-01 Studor S.A. Air admittance valve
US12305376B2 (en) * 2023-04-17 2025-05-20 Xmark SP LLC Air admittance valve

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1223983A (en) * 1969-02-13 1971-03-03 Ass Elect Ind Improvements in and relating to fluid control valves
GB1433446A (en) * 1973-10-15 1976-04-28 Ba Installationsutveckling Ab Vacuum relief valve
EP0178839A2 (en) * 1984-10-15 1986-04-23 The Babcock & Wilcox Company Vent cover
GB2171781A (en) * 1985-01-18 1986-09-03 Christopher Erik Andren Automatic one-way fluid valves

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1223983A (en) * 1969-02-13 1971-03-03 Ass Elect Ind Improvements in and relating to fluid control valves
GB1433446A (en) * 1973-10-15 1976-04-28 Ba Installationsutveckling Ab Vacuum relief valve
EP0178839A2 (en) * 1984-10-15 1986-04-23 The Babcock & Wilcox Company Vent cover
GB2171781A (en) * 1985-01-18 1986-09-03 Christopher Erik Andren Automatic one-way fluid valves

Also Published As

Publication number Publication date
GB9007884D0 (en) 1990-06-06
GB2231391A (en) 1990-11-14

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Legal Events

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

Effective date: 19990406