GB791005A - Improvements in or relating to fluid-actuated valves - Google Patents

Improvements in or relating to fluid-actuated valves

Info

Publication number
GB791005A
GB791005A GB10254/55A GB1025455A GB791005A GB 791005 A GB791005 A GB 791005A GB 10254/55 A GB10254/55 A GB 10254/55A GB 1025455 A GB1025455 A GB 1025455A GB 791005 A GB791005 A GB 791005A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
port
stem
return valve
spring
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
GB10254/55A
Inventor
Lawrence Alfred Cox
Geoffrey Donald Black
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.)
BOC Group Ltd
Original Assignee
British Oxigen 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 Oxigen Ltd filed Critical British Oxigen Ltd
Priority to GB10254/55A priority Critical patent/GB791005A/en
Publication of GB791005A publication Critical patent/GB791005A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M16/00—Devices for influencing the respiratory system of patients by gas treatment, e.g. mouth-to-mouth respiration; Tracheal tubes
    • A61M16/20—Valves specially adapted to medical respiratory devices
    • A61M16/208—Non-controlled one-way valves, e.g. exhalation, check, pop-off non-rebreathing 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
    • 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)
  • Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Pulmonology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

791,005. Artificial respiration apparatus. BRITISH OXYGEN CO., Ltd. March 16, 1956 [April 7, 1955], No. 10254/55. Addition to 748,363. Class 81 (2). [Also in Group XXIX] The fluid-actuated valve for use with pulsating pressure systems which is claimed in the parent Specification is provided with a non- return valve in the form of a rigid member such as the thin metal disc 21 adapted to float on a stem 22 secured to the movable member or diaphragm 13. The disc overlies a port or ports 23 in the diaphragm and is yieldingly urged to the closed position by a spring which may be a helical or leaf-spring of metal but is preferably of rubber or like resilient non-metallic material. As shown, the spring comprises a strip 27 of rubber held against a shoulder 26 on the stem 22 by a metal bridge 28 secured with the stem 22 to the diaphragm 13 by a screw 24 and a nut 25. Under the pressure stroke, the diaphragm engages a seating 19 and an outlet port 17 to a mask is cut off from a port leading to atmosphere or to a spirometer and connected through the non-return valve to a lung inflating device. On reversal of the pulsation stroke, the non- return valve closes immediately and the port 17 is connected to atmosphere.
GB10254/55A 1955-04-07 1955-04-07 Improvements in or relating to fluid-actuated valves Expired GB791005A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB10254/55A GB791005A (en) 1955-04-07 1955-04-07 Improvements in or relating to fluid-actuated valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB10254/55A GB791005A (en) 1955-04-07 1955-04-07 Improvements in or relating to fluid-actuated valves

Publications (1)

Publication Number Publication Date
GB791005A true GB791005A (en) 1958-02-19

Family

ID=9964472

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10254/55A Expired GB791005A (en) 1955-04-07 1955-04-07 Improvements in or relating to fluid-actuated valves

Country Status (1)

Country Link
GB (1) GB791005A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084707A (en) * 1961-03-08 1963-04-09 And Continental Illinois Bank Exhaust valve
US4217921A (en) * 1978-06-16 1980-08-19 Zurn Industries, Inc. Back flow preventer valve
US4774941A (en) * 1983-05-04 1988-10-04 Intertech Resources Inc. Resuscitator bag
WO1992006728A1 (en) * 1990-10-17 1992-04-30 Vernay Laboratories, Inc. Low pressure check valve for artificial respiration devices
US5749358A (en) 1996-10-10 1998-05-12 Nellcor Puritan Bennett Incorporated Resuscitator bag exhaust port with CO2 indicator
GB2406285A (en) * 2003-09-11 2005-03-30 Intersurgical Ltd PEEP valve for respiratory circuit

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3084707A (en) * 1961-03-08 1963-04-09 And Continental Illinois Bank Exhaust valve
US4217921A (en) * 1978-06-16 1980-08-19 Zurn Industries, Inc. Back flow preventer valve
US4774941A (en) * 1983-05-04 1988-10-04 Intertech Resources Inc. Resuscitator bag
WO1992006728A1 (en) * 1990-10-17 1992-04-30 Vernay Laboratories, Inc. Low pressure check valve for artificial respiration devices
AU649290B2 (en) * 1990-10-17 1994-05-19 Vernay Laboratories, Inc. Low pressure check valve for artificial respiration devices
US5749358A (en) 1996-10-10 1998-05-12 Nellcor Puritan Bennett Incorporated Resuscitator bag exhaust port with CO2 indicator
GB2406285A (en) * 2003-09-11 2005-03-30 Intersurgical Ltd PEEP valve for respiratory circuit
GB2406285B (en) * 2003-09-11 2007-08-22 Intersurgical Ltd Improvements relating to peep valves

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