GB1151212A - Fluid Flow Control Valves - Google Patents

Fluid Flow Control Valves

Info

Publication number
GB1151212A
GB1151212A GB2025665A GB2025665A GB1151212A GB 1151212 A GB1151212 A GB 1151212A GB 2025665 A GB2025665 A GB 2025665A GB 2025665 A GB2025665 A GB 2025665A GB 1151212 A GB1151212 A GB 1151212A
Authority
GB
United Kingdom
Prior art keywords
diaphragm
pressure
outlet ports
valve
fluid flow
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
GB2025665A
Inventor
David Millar Robertson
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 GB2025665A priority Critical patent/GB1151212A/en
Publication of GB1151212A publication Critical patent/GB1151212A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
    • B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
    • B63C11/02—Divers' equipment
    • B63C11/18—Air supply
    • B63C11/22—Air supply carried by diver
    • B63C2011/2254—Air supply carried by diver comprising means for prevention of ice formation, e.g. means for heating breathing gas in first or second stage regulators

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

1,151,212. Valves. BRITISH OXYGEN CO. Ltd. 12 Aug., 1966 [13 May, 1965], No. 20256/65. Heading F2V. An exhalation valve for a respiratory mask, comprises a diaphragm closure member 19 cooperating with a seat and, in the closed position, the diaphragm closes inlet ports 14 and outlet ports 15. The outlet ports are arranged in a stepped manner such that as the valve opens, the outlet ports 15 are opened progressively. The valve is preferably loaded to the closed position by pressure, such as oxygen pressure, supplied through pipe 25 and this pressure is normally cut off during exhalation. If the pressure in the pipe 25 should fall below atmospheric, the diaphragm will close passages 28 without opening the outlets 15. In a modification the diaphragm is spring-loaded and cooperates with a conical seat.
GB2025665A 1965-05-13 1965-05-13 Fluid Flow Control Valves Expired GB1151212A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2025665A GB1151212A (en) 1965-05-13 1965-05-13 Fluid Flow Control Valves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2025665A GB1151212A (en) 1965-05-13 1965-05-13 Fluid Flow Control Valves

Publications (1)

Publication Number Publication Date
GB1151212A true GB1151212A (en) 1969-05-07

Family

ID=10142974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2025665A Expired GB1151212A (en) 1965-05-13 1965-05-13 Fluid Flow Control Valves

Country Status (1)

Country Link
GB (1) GB1151212A (en)

Similar Documents

Publication Publication Date Title
GB1514078A (en) Pilot-operated valve having constant closing rate
GB1034759A (en) Valve for artificial respiration apparatus
GB1033196A (en) Improvements in self-regulating pitot for regulator valves
ES453962A1 (en) Pilot controlled membrane valve
GB1477313A (en) Valves
GB1114749A (en) Pressure control valve
GB1011820A (en) Improvements in fluid pressure reducing valves
GB1490553A (en) Fluid flow apparatus
GB945961A (en) Fluid flow control valves
GB947040A (en) Improvements in or relating to fluid control valves
GB1103996A (en) Improvements in or relating to liquid flow control valves
GB1263498A (en) Fluid valve
GB1123256A (en) Improvements in spool valves for fluid pressure operated apparatus
GB1151212A (en) Fluid Flow Control Valves
GB1289874A (en)
GB1064430A (en) Water heating method and apparatus
GB984956A (en)
GB969901A (en) Improvements in and relating to valves for fluid pressure systems
GB1112625A (en) Improvements in or relating to flow control valve mechanisms
GB1278612A (en) Improvements in or relating to pilot-operated safety valves
GB1275914A (en) Pressure operated diaphragm valve
GB994272A (en) Pressure reducing valves
GB849267A (en) Fluid pressure regulator
GB1120250A (en) Improvements in gas safety control valves
GB900153A (en) Improvements in valves for controlling fluids

Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees