Abstract: An air vacuum filter assembly is disclosed for use in filtering particulates from smoke and air during scrap metal cutting processes. The air vacuum filter assembly includes an enclosed container forming an air chamber therethrough between an air inlet and an exhaust outlet. A pair of fans creates a vacuum pressure in the container to suction air through the air chamber. A deflector within the enclosed container deflects and directs the air along a predetermined path through the air chamber between the air inlet and exhaust outlet. A series of filters are provided in the air flow path to filter and clean particulates from the smoke and air prior to the air exiting the container through the exhaust outlet and into the atmosphere.

Abstract: A drive system using multi-fuel engines to provide mechanical energy as an electric generator. The electric generator provides electrical energy to an electric motor which in turn provides mechanical energy to drive a load. The electric generator also provides electric energy to storage batteries. Electrical energy may be provided from the storage batteries to the electric motor as needed.

Abstract: A vehicle drive system uses multi-fuel engines to provide mechanical energy as an electric generator. The electric generator provides electrical energy to an electric motor which in turn provides mechanical energy to the drive train of a vehicle. The electric generator also provides electric energy to storage batteries. Electrical energy may be provided from the storage batteries to the electric motor as needed.