Patent ID: 7160516
Filing Date: 2007-01-09
Classification: B01F,B01J,B06B

Abstract:
1. A flow cell for the ultrasonic treatment of a liquid, said flow cell comprising: a housing having a wall at least partially defining a flow chamber therein, said housing having a first liquid passage and a second liquid passage for flowing the liquid into and out of the flow chamber; an ultrasonic horn extending into the flow chamber for imparting ultrasonic energy to liquid in the flow chamber, said ultrasonic horn having an outer surface and an end surface, and having a recess formed in the end surface, the recess having an inner surface; a tubular member having a first end in fluid communication with a second end, the first end of said tubular member being in fluid communication with the second liquid passage, and the second end of said tubular member extending into the recess in said ultrasonic horn; and the first liquid passage is positioned in an upper portion of said wall and is above the end surface of said ultrasonic horn and the recess in said ultrasonic horn is oriented to face downward; whereby liquid is forced to flow past both the outer surface and the inner surface of said ultrasonic horn as the liquid flows through the flow chamber.