US3483887A - Breathing apparatus - Google Patents

Breathing apparatus Download PDF

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Publication number
US3483887A
US3483887A US536467A US3483887DA US3483887A US 3483887 A US3483887 A US 3483887A US 536467 A US536467 A US 536467A US 3483887D A US3483887D A US 3483887DA US 3483887 A US3483887 A US 3483887A
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US
United States
Prior art keywords
valve
breathing
rocker arm
oxygen
bag
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 - Lifetime
Application number
US536467A
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English (en)
Inventor
Ernst Warncke
Hans Haas
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US3483887A publication Critical patent/US3483887A/en
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Classifications

    • 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
    • A62B9/025—Breathing demand regulators with tilting opening action
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
    • A62B7/00—Respiratory apparatus
    • A62B7/02—Respiratory apparatus with compressed oxygen or air
    • A62B7/04—Respiratory apparatus with compressed oxygen or air and lung-controlled oxygen or air valves
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/7722—Line condition change responsive valves
    • Y10T137/7781—With separate connected fluid reactor surface

Definitions

  • a breathing apparatus which has a gas tank, a breathing bag, and a valve for the gas tank which is controllable by the air pressure from the lungs.
  • a carbon dioxide danger exists during the use of the apparatus inasmuch as the gas in the lungs is exceedingly enriched with the carbon dioxide during certain periods of time.
  • a so-called cleaning apparatus is used which permits a certain amount of oxygen to fiow from the gas tank into the breathing system when the apparatus is being used. This flow of oxygen cleans the air in the apparatus from its high carbon dioxide content.
  • the special valve controls needed for the cleaning apparatus are expensive.
  • Rocker arm valves can be used for such breathing apparatus.
  • This valve has a valve plate to close off the oxygen supply by means of a lever which extends through the valve seat, the valve plate being actuated by a control means such as a breathing bag, membrane, accordion bag or the like included in the breathing system.
  • a control means such as a breathing bag, membrane, accordion bag or the like included in the breathing system.
  • the control members engage a rocker arm lever attached to the valve plate so as to open the valve.
  • Rocker arm valves are also used on which an external pressure exerts a side pressure and which are provided with a pressure reducing means. The latter is used to compensate for the force exerted on the rocker arm valve and which forces changes with the reduction in external pressure.
  • a lung-controlled valve is actuated by a movable control member of the breathing system.
  • the bag collapses and moves a control member to open an oxygen valve, and vice versa.
  • the valve is thus lungcontrolled.
  • the movable control member such as a breathing bag, is arranged to hold the lung-controlled valve in open position when the apparatus is ready for use. This has the advantage that, when the apparatus is unpacked, the compressed oxygen in the tank immediately flows through the lung-controlled valve into the breathing system of the apparatus and cleans the air therein. This eliminates the need for a special cleaning apparatus.
  • the rocker arm engages a valve head which has a pin for closing the valve opening and may be connected to the valve head by tension means.
  • tension means This avoids a constant one-way stress of the rocker arm valve surface when the valve is held constantly open for immediate operation when the breathing apparatus ice is ready for use.
  • Such is desirable for an emergency breathing apparatus using a rocker arm valve which is lungcontrolled and which apparatus is to be kept ready for instant operation.
  • the elastic material of the valve seat which forms the seal would become deformed when the valve is held in an open position for a long period of time.
  • the valve when the apparatus is actually used, the valve would be in the so-called closed position of the valve seat and would not close satisfactorily because the seat would be deformed.
  • the axial component of the rocking movement is transmitted to the valve plate and/ or the closing pin of the valve.
  • FIGURE 1 is a cross-sectional view through the breathing apparatus of this invention
  • IGURE 2 is a cross-sectional view taken on the line 2-2 of FIGURE 1;
  • FIGURE 3 is an enlarged cross-sectional view through the lungcontrolled rocker arm oxygen tank valve.
  • housing 1 contains oxygen tank 2 and breathing bag 3.
  • the housing is closed by a removable cover 1a.
  • Breathing bag 3 is joined to the sleeve 4 of the oxygen tank valve 5.
  • Valve 5 is a rocker arm valve which has its rocker arm K positioned within breathing bag 3.
  • Valve 5 is mounted on the cap 7 for the tank 2.
  • This cap carries a pin 8 which is seated in a slotted bracket 9 fastened to the housing so that the tank 2 and valve 5 can be accurately positioned in the housing.
  • This apparatus is so constructed that when packed and ready for use the breathing bag 3 is folded as shown in FIGURE 2.
  • the folds engage rocker arm K so that the arm is tilted from its axial position relative to the valve and holds the valve open.
  • This position of the arm is ensured as the pin 8 and bracket 9 keeps the valve 5 from turning to follow the pressure movement of the rocker arm.
  • Breathing bag 3 is preferably reinforced in the area where it is engaged by arm K. It is therefore ensured that when the apparatus is packed with cover In closed it is ready for use.
  • nut 10 is used to secure the casing for valve 5 to tank 2.
  • Oxygen passes through bore 11 into a high oxygen gas pressure chamber 12.
  • a poly onal shaped valve head 13 is engageable with the valve seat 14.
  • the engaging surface of the head 13 can be composed of elastic synthetic sealing material.
  • a movable pressure stabilizing rod 15 which extends through a seal 16 and into a second chamber 17. Passageway 18 places this second chamber 17 in communication with the outside atmosphere or with the interior of the breathing bag or the like.
  • This rod has substantially the same cross-sectional area as the valve seat 14.
  • Spring 19 urges the valve head 13 toward closing position. This construction results in that the closing pressure of the valve head 13 against the seat 14 is independent of the prior valve pressures and/ or the gas pressure in tank 2.
  • Rocker arm K is joined to a rocker plate 20 which engages with the end 21 of a hollow socket 22 threaded into the end of the valve.
  • the socket has an interior outwardly diverging side wall.
  • a piston 23 of polygonal cross-section bears against a boss on plate 20 and has a pin 24 extending through valve seat 14 and into contact with valve head 13. Pin 24 is of less cross-sectional area than the valve seat.
  • the outlet 25 of socket 22 is enclosed by an elastic rubber collar 26 which surrounds arm K and has lips 27 which engage the arm.
  • Collar 26 prevents dust or any other foreign substance in the breathing system from entering into the valve mechanism.
  • An annular fitting 30 is used for the gas-tight sealing of the rod 15 and this fitting includes annular sealing rings 31. Because socket 22 can be threaded into place, it is ensured that the opening path and opening time for the valve head 13 can be simply adjusted.
  • a breathing apparatus comprising a housing enclosing an oxygen tank valve having a casing and a breathing bag, a valve control rocker arm actuated by a wall of said bag, piston means in said casing engageable by one end of said arm, valve head means having means for urging said piston means toward said arm, a valve seat engageable by a portion of said valve head means to arrest flow through said apparatus, said piston urging means biasing said valve head portion toward said valve seat, said casing having a high pressure oxygen gas chamber which receives said valve head portion for valving movement therein, a pressure stabilizing rod fixed to said valve head portion for movement therewith and having approximately the same cross-sectional area as said valve seat and extending through said gas pressure chamber, a second chamber in said easing into which the free end of said rod extends. and passageway means for providing communication between said second chamber and said breathing bag, said gas chamber communicating with said bag through said valve seat in the open position of the valve, opening movement of said arm actuating said piston means to move said valve head means against the closing bias
  • An apparatus as in claim 2 further comprising a hollow socket threaded to said calve casing, and said rocker arm extending through said socket into engagement with said piston means.
  • An apparatus as in'claim 3 further comprising elastic collar means surrounding said rocker arm and attached to said casing for forming a portion of an outlet passage communicating with said valve seat and a check valve for the oxygen emitted from said valve.

Landscapes

  • Health & Medical Sciences (AREA)
  • Pulmonology (AREA)
  • General Health & Medical Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Emergency Medicine (AREA)
  • Respiratory Apparatuses And Protective Means (AREA)
US536467A 1965-03-24 1966-03-22 Breathing apparatus Expired - Lifetime US3483887A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED0046878 1965-03-24

Publications (1)

Publication Number Publication Date
US3483887A true US3483887A (en) 1969-12-16

Family

ID=7050016

Family Applications (1)

Application Number Title Priority Date Filing Date
US536467A Expired - Lifetime US3483887A (en) 1965-03-24 1966-03-22 Breathing apparatus

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US (1) US3483887A (enrdf_load_html_response)
CS (1) CS150170B2 (enrdf_load_html_response)
GB (1) GB1141835A (enrdf_load_html_response)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539986A (en) * 1982-09-13 1985-09-10 The United States Of America As Represented By The Secretary Of The Navy Simulated oxygen breathing apparatus
WO1986004255A1 (en) * 1985-01-25 1986-07-31 James William Walsh Membrane processing system and method
US4788973A (en) * 1986-05-13 1988-12-06 John Kirchgeorg Gas dispensing system and case therefor
US5655525A (en) * 1994-08-17 1997-08-12 Orr; Rodney J. Emergency breathing device in combination with decorative display
RU2200898C2 (ru) * 2001-01-18 2003-03-20 Общество с ограниченной ответственностью НПО "ПОИСК" Газовый сосуд давления (варианты), газовый ингалятор, портативный дыхательный аппарат

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US112035A (en) * 1871-02-21 Improvement in faucets
GB494926A (en) * 1936-08-15 1938-11-03 Otto Heinrich Draeger Actuating mechanism for the oxygen-supply valve of respiratory appliances controlled automatically by the lungs
US2656145A (en) * 1950-11-10 1953-10-20 Frans O Lawson Emergency acting control unit for fluid brakes
FR1351239A (fr) * 1963-03-20 1964-01-31 Appareil protecteur des voies respiratoires conçu pour régénérer l'air expiré

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US112035A (en) * 1871-02-21 Improvement in faucets
GB494926A (en) * 1936-08-15 1938-11-03 Otto Heinrich Draeger Actuating mechanism for the oxygen-supply valve of respiratory appliances controlled automatically by the lungs
US2656145A (en) * 1950-11-10 1953-10-20 Frans O Lawson Emergency acting control unit for fluid brakes
FR1351239A (fr) * 1963-03-20 1964-01-31 Appareil protecteur des voies respiratoires conçu pour régénérer l'air expiré

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4539986A (en) * 1982-09-13 1985-09-10 The United States Of America As Represented By The Secretary Of The Navy Simulated oxygen breathing apparatus
WO1986004255A1 (en) * 1985-01-25 1986-07-31 James William Walsh Membrane processing system and method
US4788973A (en) * 1986-05-13 1988-12-06 John Kirchgeorg Gas dispensing system and case therefor
US5655525A (en) * 1994-08-17 1997-08-12 Orr; Rodney J. Emergency breathing device in combination with decorative display
US5979442A (en) * 1994-08-17 1999-11-09 Orr; Rodney J. Emergency breathing device, and methods of constructing and utilizing same
RU2200898C2 (ru) * 2001-01-18 2003-03-20 Общество с ограниченной ответственностью НПО "ПОИСК" Газовый сосуд давления (варианты), газовый ингалятор, портативный дыхательный аппарат

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Publication number Publication date
GB1141835A (en) 1969-02-05
CS150170B2 (enrdf_load_html_response) 1973-09-04

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