GB1401613A - Flow-control devices - Google Patents

Flow-control devices

Info

Publication number
GB1401613A
GB1401613A GB3150071A GB3150071A GB1401613A GB 1401613 A GB1401613 A GB 1401613A GB 3150071 A GB3150071 A GB 3150071A GB 3150071 A GB3150071 A GB 3150071A GB 1401613 A GB1401613 A GB 1401613A
Authority
GB
United Kingdom
Prior art keywords
valve
diaphragm
screw
gas
rubber
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
GB3150071A
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.)
Siebe Gorman and Co Ltd
Original Assignee
Siebe Gorman and Co 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 Siebe Gorman and Co Ltd filed Critical Siebe Gorman and Co Ltd
Priority to GB3150071A priority Critical patent/GB1401613A/en
Priority to CA146,004A priority patent/CA972251A/en
Publication of GB1401613A publication Critical patent/GB1401613A/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
    • 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
    • A61M16/201—Controlled valves
    • A61M16/206—Capsule valves, e.g. mushroom, membrane valves
    • 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
    • A62B9/022—Breathing demand regulators

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Emergency Medicine (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Engineering & Computer Science (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Safety Valves (AREA)
  • Control Of Fluid Pressure (AREA)

Abstract

1401613 Valves SIEBE GORMAN & CO Ltd 5 July 1972 [5 July 1971] 31500/71 Heading F2V [Also in Division A5] A valve for controlling the supply of respirable gas to a face mask is operated by a diaphragm 6 responsive to the difference between ambient pressure and the pressure on the downstream side of the valve and is closed against the action of resilient means 28 when the pressure difference exceeds a predetermined amount. Gas is supplied to the valve through a banjo fitting 23 and passages 16, 17, 18 terminating in a seat 19 engaged by a rubber portion 21 on the valve member 20 which is of generally cylindrical shape with three plane side faces to form passageways. A ball 22 secured to the valve member by caulking with a ring punch engages a spring-loaded lever 37 operated by the diaphragm through a screw 39 which may be adjusted to alter the position of the arm at which the valve closes. A second screw 31 limits rightward movement of the diaphragm. Two centrally anchored rubber flaps (43, 44, Fig. 2) arranged in series mounted in a plastic sheath closed by a perforated metal dome (50) allow exhaled gas to flow to atmosphere or to a CO 2 absorber for recirculation to the user. Only one rubber flap may be used. A knob 34 may be unscrewed to engage the head of the screw 31 when the valve is to be held shut.
GB3150071A 1971-07-05 1971-07-05 Flow-control devices Expired GB1401613A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB3150071A GB1401613A (en) 1971-07-05 1971-07-05 Flow-control devices
CA146,004A CA972251A (en) 1971-07-05 1972-06-29 Flow-control devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3150071A GB1401613A (en) 1971-07-05 1971-07-05 Flow-control devices

Publications (1)

Publication Number Publication Date
GB1401613A true GB1401613A (en) 1975-07-16

Family

ID=10324020

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3150071A Expired GB1401613A (en) 1971-07-05 1971-07-05 Flow-control devices

Country Status (2)

Country Link
CA (1) CA972251A (en)
GB (1) GB1401613A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2431297A1 (en) * 1978-07-19 1980-02-15 Ato Inc BREATHING APPARATUS WITH AUTOMATIC BREAKING AIR
EP0047575A2 (en) * 1980-09-10 1982-03-17 Figgie International Inc. Pressure demand regulator with automatic shut-off
US4345593A (en) * 1978-07-19 1982-08-24 A-T-O Inc. Pressure-demand breathing apparatus with automatic air shut-off
GB2137509A (en) * 1983-04-06 1984-10-10 Figgie Int Inc Self-contained ventilator/resuscitator
GB2137888A (en) * 1983-04-06 1984-10-17 Figgie Int Inc A mask assembly
EP0126321A2 (en) * 1983-05-19 1984-11-28 SEKUR S.p.A. Demand valve for a breathing apparatus
US4503852A (en) * 1981-08-24 1985-03-12 Tony Christianson Pilot controlled regulator second stage
GB2144640A (en) * 1983-04-15 1985-03-13 Figgie Int Inc Unified filter and connector housing assembly incorporating a diversion valve
US5233976A (en) * 1992-04-27 1993-08-10 Dacor Corporation Second stage regulator hose with built-in cone adjusting tool
US5259374A (en) * 1992-06-12 1993-11-09 Miller Russell L Diver adjustable control for underwater breathing apparatus

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2431297A1 (en) * 1978-07-19 1980-02-15 Ato Inc BREATHING APPARATUS WITH AUTOMATIC BREAKING AIR
US4345593A (en) * 1978-07-19 1982-08-24 A-T-O Inc. Pressure-demand breathing apparatus with automatic air shut-off
EP0047575A2 (en) * 1980-09-10 1982-03-17 Figgie International Inc. Pressure demand regulator with automatic shut-off
EP0047575A3 (en) * 1980-09-10 1982-06-02 Figgie International Inc. Pressure demand regulator with automatic shut-off
US4345592A (en) * 1980-09-10 1982-08-24 A-T-O Inc. Pressure demand regulator with automatic shut-off
US4503852A (en) * 1981-08-24 1985-03-12 Tony Christianson Pilot controlled regulator second stage
GB2137888A (en) * 1983-04-06 1984-10-17 Figgie Int Inc A mask assembly
US4494538A (en) * 1983-04-06 1985-01-22 Figgie International Inc. Mask assembly
GB2137509A (en) * 1983-04-06 1984-10-10 Figgie Int Inc Self-contained ventilator/resuscitator
GB2144640A (en) * 1983-04-15 1985-03-13 Figgie Int Inc Unified filter and connector housing assembly incorporating a diversion valve
US4522639A (en) * 1983-04-15 1985-06-11 Figgie International Inc. Unified filter and connector housing assembly incorporating a diversion valve
EP0126321A2 (en) * 1983-05-19 1984-11-28 SEKUR S.p.A. Demand valve for a breathing apparatus
EP0126321A3 (en) * 1983-05-19 1985-12-04 Sekur S.P.A. Demand valve for a breathing apparatus
US5233976A (en) * 1992-04-27 1993-08-10 Dacor Corporation Second stage regulator hose with built-in cone adjusting tool
US5259374A (en) * 1992-06-12 1993-11-09 Miller Russell L Diver adjustable control for underwater breathing apparatus

Also Published As

Publication number Publication date
CA972251A (en) 1975-08-05

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Legal Events

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