Patent ID: 7998251

Claim:
A multiple vortex separator for removing solid and liquid waste from a waste stream while withdrawing a substantially moisture-free airstream under suction comprising: a housing having an outer wall with an inner surface, a waste inlet for receiving the waste stream, and an enclosed top with an exhaust port for withdrawing the substantially moisture-free airstream from the housing; an annular channel along the inner surface of the wall defining a first vortex flow path for separating liquid and solid waste from the waste stream, the annular channel being in communication with the inlet; and a filter unit containing inner and outer nested cones within the housing defining an inverted conical cavity between the cones, the conical cavity being in communication with the exhaust port and forming a second vortex flow path isolated from the first vortex flow path for separating additional liquid and solid waste from the waste stream before it is withdrawn from the exhaust port.