GB875651A - Improvements in or relating to breathing apparatus - Google Patents

Improvements in or relating to breathing apparatus

Info

Publication number
GB875651A
GB875651A GB6045/59A GB604559A GB875651A GB 875651 A GB875651 A GB 875651A GB 6045/59 A GB6045/59 A GB 6045/59A GB 604559 A GB604559 A GB 604559A GB 875651 A GB875651 A GB 875651A
Authority
GB
United Kingdom
Prior art keywords
converter
pipes
oxygen
valve
pipe
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
GB6045/59A
Inventor
Peter William Fitt
Francis Stephen Moores
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.)
Normalair Ltd
Original Assignee
Normalair 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 Normalair Ltd filed Critical Normalair Ltd
Priority to GB6045/59A priority Critical patent/GB875651A/en
Priority to US6957A priority patent/US3186406A/en
Priority to DEN10878U priority patent/DE1910856U/en
Priority to FR818720A priority patent/FR1248803A/en
Priority to ES0255921A priority patent/ES255921A1/en
Publication of GB875651A publication Critical patent/GB875651A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/06—Respiratory apparatus with liquid oxygen or air; Cryogenic systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENT OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
    • B64D13/00—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft
    • B64D13/02—Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being pressurised
    • B64D13/04—Automatic control of pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/27—Cryogenic

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)

Abstract

875,651. Respiratory appliances. NORMALAIR Ltd. Jan. 18, 1960 [Feb. 21, 1959], No. 6045/59. Class 81 (2). A breathing-apparatus using a liquid oxygen converter has means for returning excess oxygen from the breathing system to the converter. The converter 1 is filled through connection 3 and pipes 9, 17, while the enclosed air is allowed to escape through outlet 27, pipe 14 and connection 3. Removal of the filling union closes pipe 9 and connects pipes 13, 14 whereupon oxygen through pipes 17, 10 becomes evaporated in heating coil 12 and builds up the pressure in the converter, through pipes 13, 14 and connection 27 until a pressure-actuated valve 4 closes. When the system is in use liquid oxygen from pipe 17 passes through a non-return valve 18 and a liquid oxygen trap 19 to a further non- return valve 7, after which it passes to a heating coil 16, demand regulator 22 and face mask 28. During each exhalation any liquid oxygen which has collected in the trap 19 is evaporated in the coil 24 and is returned as gaseous oxygen through a differential valve 26 to the converter 1. During the initial stages of use, when gaseous oxygen will have accumulated in the converter, this gas escapes through outlet 27, pipes 14, 13, through a connection between valves 4, 5 and pipe 15 to the user. The valve 5 is opened only by high pressures and when the initial pressure has been reduced sufficiently, this valve closes and operation of the system continues as described above.
GB6045/59A 1959-02-21 1959-02-21 Improvements in or relating to breathing apparatus Expired GB875651A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
GB6045/59A GB875651A (en) 1959-02-21 1959-02-21 Improvements in or relating to breathing apparatus
US6957A US3186406A (en) 1959-02-21 1960-02-05 Breathing apparatus
DEN10878U DE1910856U (en) 1959-02-21 1960-02-09 AIRPLANE WITH A LIQUID OXYGEN RESPIRATORY SYSTEM.
FR818720A FR1248803A (en) 1959-02-21 1960-02-17 Respiratory System Improvements
ES0255921A ES255921A1 (en) 1959-02-21 1960-02-20 Breathing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB6045/59A GB875651A (en) 1959-02-21 1959-02-21 Improvements in or relating to breathing apparatus

Publications (1)

Publication Number Publication Date
GB875651A true GB875651A (en) 1961-08-23

Family

ID=9807410

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6045/59A Expired GB875651A (en) 1959-02-21 1959-02-21 Improvements in or relating to breathing apparatus

Country Status (5)

Country Link
US (1) US3186406A (en)
DE (1) DE1910856U (en)
ES (1) ES255921A1 (en)
FR (1) FR1248803A (en)
GB (1) GB875651A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1214090B (en) * 1963-10-12 1966-04-07 Draegerwerk Ag Breathing apparatus with liquid gas storage tank
US3807396A (en) * 1967-03-16 1974-04-30 E & M Labor Life support system and method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3318307A (en) * 1964-08-03 1967-05-09 Firewel Company Inc Breathing pack for converting liquid air or oxygen into breathable gas
FR2559392B1 (en) * 1984-02-15 1986-07-04 Intertechnique Sa PERSONAL PROTECTION EQUIPMENT AGAINST CONTAMINATION
US5979440A (en) * 1997-06-16 1999-11-09 Sequal Technologies, Inc. Methods and apparatus to generate liquid ambulatory oxygen from an oxygen concentrator

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1127897A (en) * 1912-05-18 1915-02-09 John H Kellogg Method of therapeuctic treatment and apparatus therefor.
US2242108A (en) * 1939-05-23 1941-05-13 Jesse G M Bullowa Oxygen vaporizer
US2244659A (en) * 1939-05-23 1941-06-10 Jesse G M Bullowa Apparatus for enriching air
US2864363A (en) * 1957-06-25 1958-12-16 Air Reduction Anesthetic vaporizer and administering apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1214090B (en) * 1963-10-12 1966-04-07 Draegerwerk Ag Breathing apparatus with liquid gas storage tank
US3807396A (en) * 1967-03-16 1974-04-30 E & M Labor Life support system and method

Also Published As

Publication number Publication date
ES255921A1 (en) 1960-06-16
DE1910856U (en) 1965-02-25
FR1248803A (en) 1960-12-23
US3186406A (en) 1965-06-01

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