GB2269885B - Non-return valve assembly - Google Patents

Non-return valve assembly

Info

Publication number
GB2269885B
GB2269885B GB9321029A GB9321029A GB2269885B GB 2269885 B GB2269885 B GB 2269885B GB 9321029 A GB9321029 A GB 9321029A GB 9321029 A GB9321029 A GB 9321029A GB 2269885 B GB2269885 B GB 2269885B
Authority
GB
United Kingdom
Prior art keywords
valve assembly
return valve
return
assembly
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 - Fee Related
Application number
GB9321029A
Other versions
GB9321029D0 (en
GB2269885A (en
Inventor
Terence Paul Griffiths
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.)
CAMBERLEY RUBBER MOULDINGS LIM
Original Assignee
CAMBERLEY RUBBER MOULDINGS LIM
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 CAMBERLEY RUBBER MOULDINGS LIM filed Critical CAMBERLEY RUBBER MOULDINGS LIM
Priority to GB9321029A priority Critical patent/GB2269885B/en
Publication of GB9321029D0 publication Critical patent/GB9321029D0/en
Publication of GB2269885A publication Critical patent/GB2269885A/en
Application granted granted Critical
Publication of GB2269885B publication Critical patent/GB2269885B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B9/00—Component parts for respiratory or breathing apparatus
    • A62B9/02—Valves
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B18/00—Breathing masks or helmets, e.g. affording protection against chemical agents or for use at high altitudes or incorporating a pump or compressor for reducing the inhalation effort
    • A62B18/08—Component parts for gas-masks or gas-helmets, e.g. windows, straps, speech transmitters, signal-devices
    • A62B18/10—Valves
    • 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
    • F16K15/14—Check valves with flexible valve members
    • F16K15/144—Check valves with flexible valve members the closure elements being fixed along all or a part of their periphery

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
GB9321029A 1990-05-10 1993-10-12 Non-return valve assembly Expired - Fee Related GB2269885B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9321029A GB2269885B (en) 1990-05-10 1993-10-12 Non-return valve assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9010529A GB2244433B (en) 1990-05-10 1990-05-10 Valve assembly for breathing apparatus
GB9321029A GB2269885B (en) 1990-05-10 1993-10-12 Non-return valve assembly

Publications (3)

Publication Number Publication Date
GB9321029D0 GB9321029D0 (en) 1993-12-01
GB2269885A GB2269885A (en) 1994-02-23
GB2269885B true GB2269885B (en) 1995-01-04

Family

ID=10675788

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9010529A Expired - Fee Related GB2244433B (en) 1990-05-10 1990-05-10 Valve assembly for breathing apparatus
GB9321029A Expired - Fee Related GB2269885B (en) 1990-05-10 1993-10-12 Non-return valve assembly

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9010529A Expired - Fee Related GB2244433B (en) 1990-05-10 1990-05-10 Valve assembly for breathing apparatus

Country Status (1)

Country Link
GB (2) GB2244433B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9419144D0 (en) * 1994-09-22 1994-11-09 Sabre Safety Ltd Breathing apparatus
DE10159218C2 (en) * 2001-11-27 2003-11-13 Msa Auer Gmbh Connection piece for respiratory masks and / or regulators
GB0406288D0 (en) * 2004-03-19 2004-04-21 Scott Health & Safety Ltd Respirators
GB2416701A (en) * 2004-08-04 2006-02-08 Joseph Anthony Griffiths High pressure breathing mask
GB2503478B (en) * 2012-06-28 2017-05-31 Anthony Griffiths Joseph Valve component
CN103656909B (en) * 2013-11-29 2016-08-31 航宇救生装备有限公司 Pressure oxygen mask big flow outlet valve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB505815A (en) * 1937-08-03 1939-05-17 William Charles Groeniger Improvements in or relating to anti-vacuum valves for fluid conduits
US3646956A (en) * 1970-03-18 1972-03-07 Adair Rogers Radial flow check valve
US3827456A (en) * 1970-08-21 1974-08-06 W Sheppard Fluid valves
GB1502872A (en) * 1974-04-08 1978-03-08 Nilson Nb Self resetting pressure release valve
EP0167511A2 (en) * 1984-07-02 1986-01-08 Gyula Racs A device for a check valve
GB2171781A (en) * 1985-01-18 1986-09-03 Christopher Erik Andren Automatic one-way fluid valves
EP0420353A2 (en) * 1989-09-29 1991-04-03 Klerk's Plastic Industrie B.V. Valve, an inflatable body with such a valve, and a packaging

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB505815A (en) * 1937-08-03 1939-05-17 William Charles Groeniger Improvements in or relating to anti-vacuum valves for fluid conduits
US3646956A (en) * 1970-03-18 1972-03-07 Adair Rogers Radial flow check valve
US3827456A (en) * 1970-08-21 1974-08-06 W Sheppard Fluid valves
GB1502872A (en) * 1974-04-08 1978-03-08 Nilson Nb Self resetting pressure release valve
EP0167511A2 (en) * 1984-07-02 1986-01-08 Gyula Racs A device for a check valve
GB2171781A (en) * 1985-01-18 1986-09-03 Christopher Erik Andren Automatic one-way fluid valves
EP0420353A2 (en) * 1989-09-29 1991-04-03 Klerk's Plastic Industrie B.V. Valve, an inflatable body with such a valve, and a packaging

Also Published As

Publication number Publication date
GB9010529D0 (en) 1990-07-04
GB2244433A (en) 1991-12-04
GB2244433B (en) 1995-01-04
GB9321029D0 (en) 1993-12-01
GB2269885A (en) 1994-02-23

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Legal Events

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

Effective date: 19990510