A compact, molded liquid oscillator nozzle having a longitudinal axis and a power nozzle, an interaction region having diverging sidewalls, top and bottom walls, and a pair of control ports at opposing sides of the interaction region, and an inertance loop connecting the control ports, characterized...http://www.google.ca/patents/US7766261?utm_source=gb-gplus-sharePatent US7766261 - Compact fluidic spa nozzle
