Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Patent
1990-10-15
1991-05-14
Crowder, Clifford D.
Surgery
Respiratory method or device
Means for supplying respiratory gas under positive pressure
12820716, A61M 1612, A61M 1620
Patent
active
050146947
ABSTRACT:
A gas blender for use with home ventilation equipment where pressurized oxygen is mixed with ambient air, in which a double ended poppet cooperates with two valve seats which are configured and orientated so that axial motion of the double ended poppet simultaneously opens both valves to maintain a constant flow ratio, or simultaneously closes both valves to maintain a constant flow ratio. One of the valve seats may be adjustably positioned to determine the initial flow ratio of gases through the valve seats.
REFERENCES:
patent: 3386458 (1968-06-01), Wasserman et al.
patent: 3509895 (1970-05-01), Henneman
patent: 3727627 (1973-04-01), Bird et al.
patent: 4297998 (1981-11-01), Christianson
patent: 4328823 (1982-05-01), Schreiber
patent: 4433685 (1984-02-01), Giorgini et al.
patent: 4436090 (1984-03-01), Darling
patent: 4524804 (1985-06-01), Goedecke et al.
patent: 4540018 (1985-09-01), Dantigraber
patent: 4576159 (1986-03-01), Hahn et al.
patent: 4592349 (1986-06-01), Bird
patent: 4597387 (1986-07-01), Carnegie et al.
patent: 4606340 (1986-08-01), Ansite
patent: 4838257 (1989-06-01), Hatch
patent: 4854574 (1989-08-01), Larson et al.
patent: 4898174 (1990-02-01), Fangrow, Jr.
patent: 4966193 (1990-10-01), De Campos
Bird Products Corporation
Crowder Clifford D.
Raciti Eric P.
LandOfFree
Ambient pressure air/oxygen blender does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Ambient pressure air/oxygen blender, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ambient pressure air/oxygen blender will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1640676