US 12,352,252 B2
Multiple cavity reciprocating positive displacement fluid pump
Andreas Torbjorn Lundin, Uppsala (SE); Klas Marteleur, Uppsala (SE); Mats Lundkvist, Uppsala (SE); Andreas Marcstrom, Uppsala (SE); and David Gronowitz, Uppsala (SE)
Assigned to Cytiva Sweden AB, Uppsala (SE)
Filed by Cytiva Sweden AB, Uppsala (SE)
Filed on Sep. 12, 2023, as Appl. No. 18/465,810.
Application 18/465,810 is a continuation of application No. 16/645,022, granted, now 11,815,075, previously published as PCT/EP2018/074072, filed on Sep. 6, 2018.
Prior Publication US 2024/0018952 A1, Jan. 18, 2024
Int. Cl. F04B 1/047 (2020.01); F04B 43/02 (2006.01)
CPC F04B 1/047 (2013.01) [F04B 43/02 (2013.01); F04B 43/026 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A multiple cavity reciprocating positive displacement fluid pump configured for a bioprocessing system comprising a pump body including plural pump cavities each including at least one cooperating pair of one-way valves, each at least one pair including an inlet valve and an outlet valve, wherein respective inlet valves are in fluid communication with a common inlet and respective outlet valves are in fluid communication with a common outlet the pump being characterised in that wherein said plural pump cavities are arranged about a pump axis and around said common inlet and outlet, wherein a respective inlet valve of the at least one cooperating pair of one-way valves and a respective outlet valve of the at least one cooperating pair of one-way valves comprises a cup shaped cavity valve, and wherein said at least one cup shaped cavity valve is formed by a respective elastomeric cup the plural pump cavities include respective movable diaphragms to provide said fluid displacement, wherein the common inlet is on the same side of the pump as the common outlet, with the common outlet being formed inside of the common inlet for part of a length thereof before bifurcating into the common inlet and the common outlet.