US 12,076,666 B2
Head space for depth filters and methods of using the same
Akshat Gupta, Tewksbury, MA (US); John Paul Amara, Reading, MA (US); Kara M. Pizzelli, Hingham, MA (US); and Shannon Ryan, Reading, MA (US)
Assigned to EMD Millipore Corporation, Burlington, MA (US)
Appl. No. 17/312,109
Filed by EMD Millipore Corporation, Burlington, MA (US)
PCT Filed Mar. 26, 2020, PCT No. PCT/US2020/025059
§ 371(c)(1), (2) Date Jun. 9, 2021,
PCT Pub. No. WO2020/198527, PCT Pub. Date Oct. 1, 2020.
Claims priority of provisional application 62/825,505, filed on Mar. 28, 2019.
Prior Publication US 2021/0354055 A1, Nov. 18, 2021
Int. Cl. B01D 24/10 (2006.01); B01D 39/16 (2006.01); B01D 39/18 (2006.01); B01D 39/20 (2006.01); G01N 1/34 (2006.01); G01N 1/40 (2006.01)
CPC B01D 24/10 (2013.01) [B01D 39/1623 (2013.01); B01D 39/18 (2013.01); B01D 39/2068 (2013.01); G01N 1/34 (2013.01); G01N 1/4077 (2013.01); B01D 2201/182 (2013.01); G01N 2001/4088 (2013.01)] 20 Claims
OG exemplary drawing
 
5. A filter assembly for filtering particles from a liquid which comprises:
a housing having an inlet for introduction of a liquid to be filtered and an outlet for filtered liquid, said outlet being spaced from said inlet;
a depth filter media in said housing; and
a head space in said housing and upstream of said depth filter media in a direction of fluid flow during filtration, wherein a volume of said head space is from 4 to 14 liters per meter squared of depth filter media area in said housing.