US 11,686,415 B2
Compact portable oxygen concentrator
Brenton Alan Taylor, Kenwood, CA (US); Peter James Hansen, Santa Barbara, CA (US); Daniel Wayne Chin, Summerland, CA (US); Patrick Fitzlindon Burgess, Dunedin, FL (US); and Michael Pollack, Goleta, CA (US)
Assigned to Inogen, Inc., Goleta, CA (US)
Filed by Inogen, Inc., Goleta, CA (US)
Filed on Apr. 1, 2020, as Appl. No. 16/837,816.
Claims priority of provisional application 62/827,689, filed on Apr. 1, 2019.
Prior Publication US 2020/0306485 A1, Oct. 1, 2020
Int. Cl. B01D 53/047 (2006.01); A61M 16/00 (2006.01); F16L 39/04 (2006.01); A61M 16/10 (2006.01); A61M 16/08 (2006.01); F04B 53/16 (2006.01); G01N 33/00 (2006.01); G01N 33/497 (2006.01); F04B 49/06 (2006.01); F04C 28/08 (2006.01); F04D 27/00 (2006.01); H03K 3/017 (2006.01); B01D 53/04 (2006.01); B01D 53/053 (2006.01); H01M 50/247 (2021.01); H01M 50/284 (2021.01); H01M 50/204 (2021.01); B01D 53/00 (2006.01)
CPC F16L 39/04 (2013.01) [A61M 16/0063 (2014.02); A61M 16/0875 (2013.01); A61M 16/101 (2014.02); B01D 53/0407 (2013.01); B01D 53/053 (2013.01); F04B 49/06 (2013.01); F04B 53/16 (2013.01); F04C 28/08 (2013.01); F04D 27/004 (2013.01); G01N 33/0031 (2013.01); G01N 33/497 (2013.01); H01M 50/204 (2021.01); H01M 50/247 (2021.01); H01M 50/284 (2021.01); H03K 3/017 (2013.01); A61M 2016/1025 (2013.01); A61M 2202/0208 (2013.01); A61M 2205/3331 (2013.01); A61M 2205/3375 (2013.01); A61M 2205/362 (2013.01); A61M 2205/3606 (2013.01); A61M 2205/8206 (2013.01); A61M 2230/42 (2013.01); B01D 53/00 (2013.01); B01D 2256/12 (2013.01); B01D 2257/102 (2013.01); B01D 2257/40 (2013.01); B01D 2259/4533 (2013.01); B01D 2259/4541 (2013.01); F05B 2270/301 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A gas concentrator, comprising:
a chassis base;
a compressor assembly;
an airflow generator;
a plurality of exhaust ports, wherein the plurality of exhaust ports comprises a first exhaust port and a second exhaust port, wherein the first exhaust port and the second exhaust port are formed within opposite side surfaces of the chassis base; and
an outer housing coupled to the chassis base so as to define an internal volume enclosing the compressor assembly and the airflow generator, the outer housing comprising one or more air inlets, wherein the one or more air inlets are recessed within the outer housing or extend along a curved or angled surface of the outer housing;
wherein the airflow generator is configured to direct airflow along an airflow path between the one or more air inlets and the plurality of exhaust ports.