Filtration apparatus and process

Details Filtration apparatus and process Filtration apparatus and process

2005-01-18

2005-01-18

Lawrence, Frank M. (Department: 1724)

Liquid purification or separation

Electrical insulating or electricity discharging

C210S391000, C204S665000

Reexamination Certificate

active

06843914

ABSTRACT:
Performance of a rotating filter element for removing particulate matter from a liquid is enhanced by applying acoustic energy in the ultrasonic frequency range to the filter element by plural transducers affixed to the exterior of a bowl surrounding the rotating filter element. The bowl and filter element can be electrically isolated from each other and connected to a D.C. power supply for further enhancement of filter performance. The ultrasonic transducers, the power supply, and a discharge valve can all be operated by a controller, responsive to a sensor which senses the pressure drop across the filter element.

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