GB650256A - Improvements relating to non-return valves - Google Patents

Improvements relating to non-return valves

Info

Publication number
GB650256A
GB650256A GB3033148A GB3033148A GB650256A GB 650256 A GB650256 A GB 650256A GB 3033148 A GB3033148 A GB 3033148A GB 3033148 A GB3033148 A GB 3033148A GB 650256 A GB650256 A GB 650256A
Authority
GB
United Kingdom
Prior art keywords
improvements relating
return valves
valves
return
relating
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
GB3033148A
Inventor
Edward Harris
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.)
Minister of Supply In Her Majesty S Government
Original Assignee
Minister of Supply In Her Majesty S Government
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 Minister of Supply In Her Majesty S Government filed Critical Minister of Supply In Her Majesty S Government
Priority to GB3033148A priority Critical patent/GB650256A/en
Publication of GB650256A publication Critical patent/GB650256A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • F16K15/02—Check valves with guided rigid valve members

Landscapes

  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Mechanical Engineering (AREA)
GB3033148A 1948-11-22 1948-11-22 Improvements relating to non-return valves Expired GB650256A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3033148A GB650256A (en) 1948-11-22 1948-11-22 Improvements relating to non-return valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3033148A GB650256A (en) 1948-11-22 1948-11-22 Improvements relating to non-return valves

Publications (1)

Publication Number Publication Date
GB650256A true GB650256A (en) 1951-02-21

Family

ID=10305943

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3033148A Expired GB650256A (en) 1948-11-22 1948-11-22 Improvements relating to non-return valves

Country Status (1)

Country Link
GB (1) GB650256A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1173298B (en) * 1958-10-03 1964-07-02 Unilever Nv Self-opening and closing cap for compressible tubes
US4375825A (en) * 1978-05-25 1983-03-08 Greenspan Donald J Integral valve apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1173298B (en) * 1958-10-03 1964-07-02 Unilever Nv Self-opening and closing cap for compressible tubes
US4375825A (en) * 1978-05-25 1983-03-08 Greenspan Donald J Integral valve apparatus

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