Gas separation: processes – With control responsive to sensed condition – Pressure sensed
Reexamination Certificate
2008-07-22
2008-07-22
Lawrence, Frank M. (Department: 1724)
Gas separation: processes
With control responsive to sensed condition
Pressure sensed
C095S130000, C096S114000, C096S121000, C128S204260, C128S205240
Reexamination Certificate
active
11099783
ABSTRACT:
A portable oxygen concentrator includes a pair of sieve beds having first and second ends, a compressor for delivering air to the first ends of the sieve beds, a reservoir communicating with the second ends of the sieve beds, and an air manifold attached to the first ends of the sieve beds. The air manifold includes passages therein communicating with the compressor and the first ends of the sieve beds. A set of valves is coupled to the air manifold, and a controller is coupled to the valves for selectively opening and closing the valves to alternately charge and purge the sieve beds to deliver concentrated oxygen into the reservoir. An oxygen delivery manifold communicates with the second ends of the sieve beds for delivering oxygen from the reservoir to a user. Pressure sensors may be provided in the reservoir and/or delivery line for controlling operation of the controller.
REFERENCES:
patent: 4302224 (1981-11-01), McCombs
patent: 4342573 (1982-08-01), McCombs
patent: 4378982 (1983-04-01), McCombs
patent: 4457303 (1984-07-01), Durkan
patent: 4491459 (1985-01-01), Pinkerton
patent: 4502873 (1985-03-01), Mottram
patent: 4509959 (1985-04-01), McCombs
patent: 4511377 (1985-04-01), McCombs
patent: 4537606 (1985-08-01), Itoh et al.
patent: 4561865 (1985-12-01), McCombs
patent: 4576616 (1986-03-01), Mottram
patent: 4681099 (1987-07-01), Sato
patent: 4784130 (1988-11-01), Kenyon
patent: 4802899 (1989-02-01), Vrana
patent: 4826510 (1989-05-01), McCombs
patent: 4892566 (1990-01-01), Bansal
patent: D311061 (1990-10-01), Vrana
patent: 4971609 (1990-11-01), Pawlos
patent: 4973339 (1990-11-01), Bansal
patent: 5024219 (1991-06-01), Dietz
patent: 5071449 (1991-12-01), Sircar
patent: 5203887 (1993-04-01), Toussaint
patent: 5268021 (1993-12-01), Hill
patent: 5340381 (1994-08-01), Vorih
patent: 5370728 (1994-12-01), LaSala
patent: RE35099 (1995-11-01), Hill
patent: 5474595 (1995-12-01), McCombs
patent: 5518526 (1996-05-01), Baksh
patent: 5531807 (1996-07-01), McCombs
patent: 5578115 (1996-11-01), Cole
patent: 5593478 (1997-01-01), Hill et al.
patent: 5658371 (1997-08-01), Smolarek
patent: 5711787 (1998-01-01), Neill
patent: 5735268 (1998-04-01), Chua
patent: 5746806 (1998-05-01), Aylsworth
patent: 5827358 (1998-10-01), Kulish et al.
patent: 5871564 (1999-02-01), McCombs
patent: 5871565 (1999-02-01), Leavitt
patent: 5893944 (1999-04-01), Dong
patent: 6176897 (2001-01-01), Keefer
patent: 6186477 (2001-02-01), McCombs
patent: 6190441 (2001-02-01), Czabala et al.
patent: 6302107 (2001-10-01), Richey et al.
patent: 6314957 (2001-11-01), Boissin
patent: 6346139 (2002-02-01), Czabala
patent: 6348082 (2002-02-01), Murdoch et al.
patent: 6393802 (2002-05-01), Bowser
patent: 6427690 (2002-08-01), McCombs
patent: 6446630 (2002-09-01), Todd, Jr.
patent: 6475265 (2002-11-01), Baksh
patent: 6478850 (2002-11-01), Warren
patent: 6514319 (2003-02-01), Keefer
patent: 6520176 (2003-02-01), Dubois
patent: 6547851 (2003-04-01), Warren
patent: 6551384 (2003-04-01), Ackley
patent: 6558451 (2003-05-01), McCombs
patent: 6651658 (2003-11-01), Hill
patent: 6691702 (2004-02-01), Appel
patent: 6712087 (2004-03-01), Hill
patent: 6764534 (2004-07-01), McCombs
patent: 6802889 (2004-10-01), Graham
patent: 6832900 (2004-12-01), Leu
patent: 6923180 (2005-08-01), Richey et al.
patent: D510169 (2005-09-01), Deane
patent: 2003/0005928 (2003-01-01), Appel et al.
patent: 2005/0072298 (2005-04-01), Deane
patent: 2005/0072306 (2005-04-01), Deane
patent: 2005/0072423 (2005-04-01), Deane
patent: 2005/0072426 (2005-04-01), Deane
patent: 2005/0103341 (2005-05-01), Deane
patent: 2005/0257686 (2005-11-01), Occhialini
patent: 2005/0274381 (2005-12-01), Deane
patent: WO9807082 (1998-02-01), None
patent: WO0245821 (2002-06-01), None
patent: WO03090903 (2003-11-01), None
patent: WO2004054493 (2004-07-01), None
International Search Report for PCT/US2006/012792, Applicant Oxytec Medical Corporation, Forms PCT/ISA/210, Aug. 30, 2006.
Atlas, Jr. Charles R.
Bliss Peter L.
Halperin Scott Cameron
Haas Michael W.
Lawrence Frank M.
Respironics Oxytec, Inc.
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