Abstract: A device for the separation of particles from a stream of gas by centrifugal action, comprising a driven rotatable hollow conically diverging body 1,2 and a feeding apparatus for directing the contaminated gas stream toward the inside wall of said body in the region of its narrowest portion so that the particles will be deposited against said wall and will gradually move toward the widest portion of said conical body; the stream of gas being controlled such that within the body a toroidal eddy forms for the recirculation of the contaminated gas stream.

Abstract: A rotating seal assembly for a continuous flow centrifuge is described. The seal assembly permits both elements of the rotating seal, the rotating member as well as a nonrotating member to be resiliently mounted and in such a manner that both may rock as necessary to accommodate the vibrations of the other. Furthermore, the drive for the rotating member is decoupled so that greater freedom of movement for the rotating member is afforded.

Abstract: A rotating seal for a continuous flow centrifuge is disclosed. The rotating seal is mounted at the center of mass of the rotor to reduce vibration of the seal. The nonrotating portion of the rotating seal is maintained in contact with the rotating portion of the seal by a three point spring secured to a housing which is resiliently mounted to the chamber which encloses the rotor. In this manner, the nonrotating disk is able to follow the reduced amplitude vibrations of the rotating disk with reduced leakage.