Fluid handling – Self-proportioning or correlating systems – Supply and exhaust type
Patent
1993-07-08
1995-03-21
Hepperle, Stephen M.
Fluid handling
Self-proportioning or correlating systems
Supply and exhaust type
12820311, 12820524, 137908, 251 65, A61M 1600
Patent
active
053987144
ABSTRACT:
A resuscitation and inhalation device which can be used alternatively in each of two modes. The flow of oxygen or gas is controlled by a control valve, itself controlled by a movable member acted upon by the pressure of oxygen or gas in a chamber after having flowed passed the control valve. On meeting a preset maximum pressure, the valve member moves to close the control valve. The movable valve member is acted upon by a magnetic field which is adjustable, and the magnetic field strength sets the pressure at which the valve member moves. Oxygen or gas is admitted to the control valve by two alternative inlet valves, one for resuscitation with only oxygen or gas flowing through the mask, and one for inhalation, with a mixture of oxygen or gas and air or a second gas being fed through the mask.
REFERENCES:
patent: 402779 (1989-06-01), Steinhoff
patent: 2364626 (1944-12-01), Emerson
patent: 2695609 (1954-11-01), Nourse et al.
patent: 3039481 (1962-06-01), Schreiber et al.
patent: 3199524 (1965-08-01), Mitchell
patent: 3209748 (1965-10-01), Thomas
patent: 3279487 (1966-10-01), Elam
patent: 3333581 (1967-08-01), Robinson
patent: 3509899 (1970-06-01), Hewson
patent: 3515163 (1970-06-01), Freeman
patent: 3561466 (1971-02-01), Carden
patent: 3610237 (1971-10-01), Bar et al.
patent: 3938511 (1976-02-01), Roberts
patent: 4210174 (1980-07-01), Eross
patent: 4297999 (1981-11-01), Kitrell
patent: 4349015 (1982-09-01), Alferness
patent: 4606339 (1986-08-01), Walther
patent: 4664355 (1987-06-01), Kubach
patent: 4796619 (1989-01-01), Walther
patent: 4825904 (1989-06-01), Grau et al.
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