GB1357249A - Non-return valves for fluids - Google Patents

Non-return valves for fluids

Info

Publication number
GB1357249A
GB1357249A GB612072A GB612072A GB1357249A GB 1357249 A GB1357249 A GB 1357249A GB 612072 A GB612072 A GB 612072A GB 612072 A GB612072 A GB 612072A GB 1357249 A GB1357249 A GB 1357249A
Authority
GB
United Kingdom
Prior art keywords
closure member
seat
apex
grooves
fluids
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
GB612072A
Other languages
English (en)
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.)
BRITISH STEAM SPEC
British Steam Specialties Ltd
Original Assignee
BRITISH STEAM SPEC
British Steam Specialties 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
Application filed by BRITISH STEAM SPEC, British Steam Specialties Ltd filed Critical BRITISH STEAM SPEC
Priority to GB612072A priority Critical patent/GB1357249A/en
Priority to CH164373A priority patent/CH558491A/xx
Priority to JP1545973A priority patent/JPS4892921A/ja
Priority to DE19732306293 priority patent/DE2306293A1/de
Priority to IT6728273A priority patent/IT977748B/it
Priority to FR7304482A priority patent/FR2171298B1/fr
Publication of GB1357249A publication Critical patent/GB1357249A/en
Priority to JP1905778U priority patent/JPS53117640U/ja
Expired 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
    • F16K15/14—Check valves with flexible valve members
    • F16K15/148—Check valves with flexible valve members the closure elements being fixed in their centre

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Check Valves (AREA)
GB612072A 1972-02-09 1972-02-09 Non-return valves for fluids Expired GB1357249A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB612072A GB1357249A (en) 1972-02-09 1972-02-09 Non-return valves for fluids
CH164373A CH558491A (de) 1972-02-09 1973-02-06 Rueckschlagventilvorrichtung.
JP1545973A JPS4892921A (xx) 1972-02-09 1973-02-07
DE19732306293 DE2306293A1 (de) 1972-02-09 1973-02-08 Rueckschlagventil
IT6728273A IT977748B (it) 1972-02-09 1973-02-08 Valvola di ritegno
FR7304482A FR2171298B1 (xx) 1972-02-09 1973-02-08
JP1905778U JPS53117640U (xx) 1972-02-09 1978-02-16

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB612072A GB1357249A (en) 1972-02-09 1972-02-09 Non-return valves for fluids

Publications (1)

Publication Number Publication Date
GB1357249A true GB1357249A (en) 1974-06-19

Family

ID=9808768

Family Applications (1)

Application Number Title Priority Date Filing Date
GB612072A Expired GB1357249A (en) 1972-02-09 1972-02-09 Non-return valves for fluids

Country Status (6)

Country Link
JP (2) JPS4892921A (xx)
CH (1) CH558491A (xx)
DE (1) DE2306293A1 (xx)
FR (1) FR2171298B1 (xx)
GB (1) GB1357249A (xx)
IT (1) IT977748B (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4191211A (en) * 1978-09-15 1980-03-04 The British Steam Specialties Limited Valve member for a non-return valve
EP0151688A2 (de) * 1984-02-09 1985-08-21 Lasso Technik AG Ventil zur Verhinderung des Rückflusses von flüssigen und gasförmigen Medien
EP1883762A2 (en) * 2005-05-21 2008-02-06 Mark Johnson Check valve
US7793656B2 (en) 2002-06-03 2010-09-14 Lifetime Products, Inc. Underwater breathing devices and methods
US7823585B2 (en) 2004-10-08 2010-11-02 Mark Johnson Snorkel clip
US8011363B2 (en) 2002-06-03 2011-09-06 Mark Johnson Exhalation valve for use in a breathing device
US8011364B2 (en) 2006-05-18 2011-09-06 Johnson Mark R Exhalation valve for use in an underwater breathing device
CN106510485A (zh) * 2016-11-10 2017-03-22 珠海格力电器股份有限公司 水箱盖、水箱组件和电饭煲
WO2019200319A1 (en) * 2018-04-12 2019-10-17 Illinois Tool Works Inc. Gravity independent pressure relief valve

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO151123C (no) * 1975-11-06 1985-02-13 Kamyr Inc Fremgangsmaate til fremstilling av en homogen cullulosemasse
GB9618414D0 (en) * 1996-09-04 1996-10-16 Imi Norgren Ltd Improvements relating to compressed air lubricators

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1157927A (en) * 1966-07-18 1969-07-09 Bert Nils Svenson Check Valve with Supported Closure Member

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4191211A (en) * 1978-09-15 1980-03-04 The British Steam Specialties Limited Valve member for a non-return valve
EP0151688A2 (de) * 1984-02-09 1985-08-21 Lasso Technik AG Ventil zur Verhinderung des Rückflusses von flüssigen und gasförmigen Medien
EP0151688A3 (en) * 1984-02-09 1986-07-16 Lasso Technik Ag Seat and valve for the prevention of backflow of liquid and gaseous media
US8011363B2 (en) 2002-06-03 2011-09-06 Mark Johnson Exhalation valve for use in a breathing device
US7793656B2 (en) 2002-06-03 2010-09-14 Lifetime Products, Inc. Underwater breathing devices and methods
US7823585B2 (en) 2004-10-08 2010-11-02 Mark Johnson Snorkel clip
EP1883762A2 (en) * 2005-05-21 2008-02-06 Mark Johnson Check valve
EP1883762A4 (en) * 2005-05-21 2009-09-02 Mark Johnson check valve
US8297318B2 (en) 2005-05-21 2012-10-30 Mark Johnson Check valve
US8011364B2 (en) 2006-05-18 2011-09-06 Johnson Mark R Exhalation valve for use in an underwater breathing device
CN106510485A (zh) * 2016-11-10 2017-03-22 珠海格力电器股份有限公司 水箱盖、水箱组件和电饭煲
WO2019200319A1 (en) * 2018-04-12 2019-10-17 Illinois Tool Works Inc. Gravity independent pressure relief valve
US11260726B2 (en) 2018-04-12 2022-03-01 Illinois Tool Works Inc. Gravity independent pressure relief valve

Also Published As

Publication number Publication date
FR2171298A1 (xx) 1973-09-21
FR2171298B1 (xx) 1978-09-08
JPS53117640U (xx) 1978-09-19
JPS4892921A (xx) 1973-12-01
DE2306293A1 (de) 1973-08-16
IT977748B (it) 1974-09-20
CH558491A (de) 1975-01-31

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Legal Events

Date Code Title Description
PS Patent sealed
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19930117