Abstract: An apparatus comprising a longitudinally extending housing having a fluid inlet port; at leat one plurality of spaced apart members rotatably mounted in the housing to transmit motive force between fluid introduced through the fluid inlet port and the members, the spaced apart members having an upstream end and a downstream end; and, a fluid outlet port extending longitudinally along the housing and having a first end positioned towards the upstream end of the spaced apart members and a second end positioned towards the downstream end of the spaced apart members, the second end of the fluid outlet port radially displaced along the housing from the first end.

Abstract: A terminal insert for a cyclone separator for separating a material from a fluid. The terminal insert has a distinct member positioned within the cyclone separator to impinge upon at least a portion of the fluid as it rotates within the cyclone separator to destructively interfere with the rotational motion of the fluid within the cyclone separator.

Abstract: An apparatus for producing ozone from oxygen comprises a high voltage electrode connectable to a current source; a ground electrode spaced from the high voltage electrode and having an upstream end and a downstream end; a dielectric element positioned between the high voltage electrode and the ground electrode; a path for air flow positioned between the dielectric element and the ground electrode; and, a current collector positioned downstream of the high voltage electrode and comprising an extension of the ground electrode.