Patent ID: 9643142
Date: 2017-05-09
CPC Classifications: B01F,C12M

Claim:
1. A plunge-mixing bag arrangement, comprising: a flexible mixing bag defining a mixing region; an elongated shaft having a first end disposed outside of the flexible mixing bag and an opposing second end disposed within the mixing region, the shaft comprising a sparger, the sparger comprising an interior channel extending through the shaft from the first end disposed outside of the flexible mixing bag to the opposing second end disposed within the mixing region and a plurality of ports extending from the interior channel at locations upstream from the second end to an exterior surface of the shaft within the mixing region; a porous material disposed within the interior channel of the shaft so as to continuously extend from the first end disposed outside of the flexible mixing bag to the opposing second end disposed within the mixing region so that when a gas passes through the sparger, the gas passes through the porous material, the porous material forming a constricted flow path for the gas; and a mixing head connected to the shaft opposite from where the shaft extends from the outside into the mixing region; wherein the shaft is capable of axial movement within the bag to fracture gas bubbles being released from the interior channel through the ports.