US 12,226,733 B2
Systems and methods for concentrating gas
Matthew E. Monaghan, Chagrin Falls, OH (US); Pankaj Patil, Wooster, OH (US); and William A. Null, Nova, OH (US)
Assigned to VENTEC LIFE SYSTEMS INC., Dublin, OH (US)
Filed by INVACARE CORPORATION, Elyria, OH (US)
Filed on Jul. 15, 2021, as Appl. No. 17/376,202.
Claims priority of provisional application 63/212,920, filed on Jun. 21, 2021.
Claims priority of provisional application 63/052,694, filed on Jul. 16, 2020.
Prior Publication US 2022/0016566 A1, Jan. 20, 2022
Int. Cl. B01D 53/02 (2006.01); B01D 53/04 (2006.01); B01D 53/047 (2006.01); B01D 53/22 (2006.01); B01D 69/04 (2006.01); B01D 71/02 (2006.01)
CPC B01D 53/229 (2013.01) [B01D 53/0407 (2013.01); B01D 53/0446 (2013.01); B01D 53/047 (2013.01); B01D 53/226 (2013.01); B01D 69/046 (2013.01); B01D 71/0281 (2022.08); B01D 2053/223 (2013.01); B01D 2256/12 (2013.01); B01D 2257/102 (2013.01); B01D 2259/4533 (2013.01)] 23 Claims
OG exemplary drawing
 
1. A system for a sieve bed comprising: a sieve bed material; a body having: at least one gas input; a chamber receiving gas from the input; and at least one flow modifying structure extending from a domed chamber wall into the chamber, the flow modifying structure dispersing the gas over an area prior to the gas entering the sieve bed material.