US 12,173,827 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 Dec. 28, 2022, as Appl. No. 18/147,657.
Application 18/147,657 is a division of application No. 16/837,813, filed on Apr. 1, 2020, granted, now 11,821,559.
Claims priority of provisional application 62/827,689, filed on Apr. 1, 2019.
Prior Publication US 2023/0160513 A1, May 25, 2023
Int. Cl. B01D 53/04 (2006.01); A61M 16/00 (2006.01); A61M 16/08 (2006.01); A61M 16/10 (2006.01); B01D 53/053 (2006.01); F04B 49/06 (2006.01); F04B 53/16 (2006.01); F04C 28/08 (2006.01); F04D 27/00 (2006.01); F16L 39/04 (2006.01); G01N 33/00 (2006.01); G01N 33/497 (2006.01); H01M 50/204 (2021.01); H01M 50/247 (2021.01); H01M 50/284 (2021.01); H03K 3/017 (2006.01); 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 2205/3606 (2013.01); A61M 2205/362 (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)] 19 Claims
OG exemplary drawing
 
1. A sensor assembly, comprising:
an oxygen sensor, comprising:
at least one emitter comprising an active surface configured to emit an acoustic signal;
at least one receiver comprising an active surface configured to receive the acoustic signal;
a body forming a chamber, the body comprising:
a rear wall comprising:
a first opening configured to receive the at least one emitter such that the active surface of the at least one emitter is exposed to the chamber; and
a second opening configured to receive the at least one receiver such that the active surface of the at least one receiver is exposed to the chamber; and
at least two reflectors configured to reflect the acoustic signal so as to establish an acoustic path between the active surface of the at least one emitter and the active surface of the at least one receiver; and
a printed circuit board, wherein the at least one emitter and the at least one receiver are mounted to the printed circuit board, and wherein the printed circuit board is mounted to the body so that the at least one emitter and the at least one receiver extend through the first opening and the second opening respectively.