An ultrasonic liquid treatment chamber has an elongate housing through which liquid flows longitudinally from an inlet port to an outlet port thereof. An elongate ultrasonic waveguide assembly extends within the housing and is operable at a predetermined ultrasonic frequency to ultrasonically energize...http://www.google.de/patents/US20080062811?utm_source=gb-gplus-sharePatent US20080062811 - ULTRASONIC LIQUID TREATMENT CHAMBER AND CONTINUOUS FLOW MIXING SYSTEM
