Gas separation: processes – Solid sorption – Inorganic gas or liquid particle sorbed
Reexamination Certificate
2006-10-18
2009-06-23
Smith, Duane (Department: 1797)
Gas separation: processes
Solid sorption
Inorganic gas or liquid particle sorbed
C095S121000, C096S127000, C096S128000, C096S130000, C128S204180, C417S062000, C417S199100
Reexamination Certificate
active
07550031
ABSTRACT:
An energy efficient oxygen concentrator for filling high pressure portable cylinders with medical oxygen for use by ambulatory patients. Two compressors provide two pressurized air sources, one for operating an oxygen concentrator to provide a stream of oxygen enriched gas, and the other for driving a pressure intensifier for filling portable oxygen cylinders. Pressurized exhaust from the pressure intensifier is returned to the inlet side of at least one of the compressors for reducing the energy required to drive the compressor. Preferably, each compressor has a single reciprocating piston, a single motor drives both pistons and the pressurized exhaust from pressure intensifier is provided to the inlets for both compressors.
REFERENCES:
patent: 4552571 (1985-11-01), Dechene
patent: 4636226 (1987-01-01), Canfora
patent: 4673415 (1987-06-01), Stanford
patent: 5071453 (1991-12-01), Hradek et al.
patent: 5163978 (1992-11-01), Leavitt et al.
patent: 5354361 (1994-10-01), Coffield
patent: 5368019 (1994-11-01), Latorraca
patent: 5858062 (1999-01-01), McCulloh et al.
patent: 5988165 (1999-11-01), Richey, II et al.
patent: 6302107 (2001-10-01), Richey, II et al.
patent: 6394089 (2002-05-01), Cantrill et al.
patent: 6446630 (2002-09-01), Todd, Jr.
patent: 6660065 (2003-12-01), Byrd et al.
patent: 6712877 (2004-03-01), Cao et al.
patent: 6805122 (2004-10-01), Richey, II et al.
patent: 6889726 (2005-05-01), Richey, II et al.
patent: 6904913 (2005-06-01), Aylsworth et al.
patent: 2005/0103341 (2005-05-01), Deane et al.
Bowser Karl
Frola Frank R.
Hunter Donald W.
MacMillan Sobanski & Todd LLC
Shumate Anthony
Smith Duane
Sunrise Medical HHG Inc.
LandOfFree
Cylinder filling oxygen concentrator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Cylinder filling oxygen concentrator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cylinder filling oxygen concentrator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4144192