US 12,467,838 B2
Sample extraction system and method with pressure decoupling
Giorgio Horak, Geneva (CH)
Assigned to Andrew Alliance S.A., (CH)
Filed by Andrew Alliance S.A., Canton of Geneva (CH)
Filed on Dec. 29, 2022, as Appl. No. 18/090,669.
Claims priority of provisional application 63/294,456, filed on Dec. 29, 2021.
Prior Publication US 2023/0204479 A1, Jun. 29, 2023
Int. Cl. G01N 1/40 (2006.01); G01N 1/14 (2006.01)
CPC G01N 1/4077 (2013.01) [G01N 1/14 (2013.01); G01N 2001/1418 (2013.01); G01N 2001/4088 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A sample filtration and/or extraction system comprising:
a vacuum manifold configured to connect with a vacuum pump;
a vacuum chamber such that each of a plurality of filter columns is configured to be disposed at least partially within the vacuum chamber, the plurality of filter columns each including an opening configured to receive a sample, wherein each of the openings define a plurality of openings; and
a passive pressure decoupling device configured to be placed on a top of the plurality of filter columns, such that each of the plurality of openings of the plurality of filter columns is covered by the passive pressure decoupling device, wherein the passive pressure decoupling device includes a plurality of reserve air volume cells each including a pre-defined volume, one of the plurality of the reserve air volume cells above each of the plurality of openings.