Patent ID: 9725690
Date: 2017-08-08
CPC Classifications: B01D,B06B,C12M,C12N

Claim:
1. An acoustophoresis device, comprising: one or more device inlets at a bottom end of the device, the bottom end having a first diameter for receiving fluid flow; a contoured wall above the inlet that narrows the fluid flow to a second diameter of a connecting duct; a flow chamber above the connecting duct, the flow chamber having: an inlet at a bottom end for receiving the fluid flow, an outlet at a top end opposite the bottom end, at least one ultrasonic transducer located on a wall of the flow chamber, the ultrasonic transducer including a piezoelectric material driven by a voltage signal to create a multi-dimensional standing wave in the flow chamber, and a reflector located on a wall on the opposite side of the flow chamber from the at least one ultrasonic transducer; a first device outlet located at the bottom end of the device and separated from the device inlet by a longitudinal sidewall; and a second device outlet located at the top end of the device above the flow chamber outlet.