Abstract: A method for enhancing chemical reactions in a constantly flowing stream of liquid character fortified with oxidizing agents, such as air or oxygen or other chemical agents, makes use of an inner resonant tube concentrically mounted within an outer resonant tube with the walls of the tubes spaced from each other forming an annular passageway for the flow of liquid from one end of the passageway to the other. One or more sets of radially spaced ultrasonic transducers are located on the outside wall of the outer resonant tube thereby to create an ultrasonic cavitation condition in the liquid as it flows through the annular passageway.

Abstract: An apparatus for enhancing chemical reactions in a constantly flowing stream of liquid character fortified with oxidizing agents, such as air or oxygen or other chemical agents, makes use of an inner resonant tube concentrically mounted within an outer resonant tube with the walls of the tubes spaced from each other forming an annular passageway for the flow of liquid from one end of the passageway to the other. One or more sets of radially spaced ultrasonic transducers are located on the outside wall of the outer resonant tube thereby to create an ultrasonic cavitation condition in the liquid as it flows through the annular passageway.

Abstract: A continuous self-cleaning filter for liquids has an outer resonant tube concentrically mounted around an inner composite tube in spaced relationship providing an annular chamber between them. There is an inflow at one end of the annular chamber for the liquid and an outflow at the other end for residual concentrate. The inner composite tube has an outlet at one end for clear effluent and a closed opposite end. A relatively thin walled perforate liner enveloped in a filter blanket comprises the composite tube.

Abstract: In a substantially conventional system for receiving and conveying a fluid suspension of material there is an endless porous belt screen on which the material is spread and a tray beneath the belt to catch liquid which passes through the belt. A suction box beneath the belt near the area of deposition draws off some liquid. Superimposed on the conventional system is a resonant frequency energy source in the form of a roll assembly consisting in part of an outer shell in the form of an exterior cylindrical roll supported on shock mounts and in constant engagement with the underside of the belt. The exterior cylindrical roll is driven at a circumferential speed equal to the linear speed of travel of the belt.

Abstract: For the continuous mixing of fluid process materials or gases as they flow uninterrupted from a point of initial mixing to a discharge end and processed by means of intense vaporous cavitation, use is made of a resonant tube section having an entrance end and an exit end. The tube section is isolated from the rest of the supporting structure by means of resilient isolation mounts. A source of sinusoidal energy is connected to and excites the resonant tube section into one of its modes of natural frequency causing intense resonant sinusoidal acoustic energy to be developed and transmitted in spherical fashion from the inner resonant tube wall and throughout the flowing fluids. The energy thus released generates intense acoustical vaporous cavitation energy which breaks the surface tension and mixes the materials.