Patent ID: 7300040
Filing Date: 2007-11-27
Classification: B01F,F15D

Abstract:
1. An apparatus, free of complex mechanisms or moving parts, for providing a simple means of generating vortex ring bubbles of a gas in a liquid medium, comprising: an inverted cup immersed in a host liquid, said cup having a closed top end, side walls, and an open bottom end, so as to confine any gas within the confined gas volume of the inverted cup between said top and bottom ends, a single hollow nozzle tube protruding vertically through the center of the closed top end of the inverted cup, said nozzle tube having upper and lower ends, its lower open end positioned within the inverted cup and above the open bottom end of the inverted cup, and said upper and lower ends of the nozzle tube being symmetric and free of chips and burrs, and a feed port in fluid communication with the confined gas volume of the inverted cup and being connected to an external source of pressurized gas to allow pressurization of the gas in the confined volume of the inverted cup, and the internal wetted surfaces of the inverted cup and the nozzle tube are roughened or grooved to enhance wetting by the host liquid.