Patent ID: 11939994
Assignee: MOLTEN METAL EQUIPMENT INNOVATIONS, LLC
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  C  Y | IPC C  F

Claim 0:
1. A device comprising (A) a rotor shaft, wherein the rotor shaft is comprised of one or more of the group consisting of graphite and ceramic and the rotor shaft includes (a) a first end configured to be received in a coupling, and (b) a second end configured to be connected to a rotor, wherein the second end has at least one outwardly-extending projection that is configured to (i) fit through an elongated section in an upper surface of the rotor, and (ii) be received and retained in a rotor cavity that has at least one abutment, wherein the abutment is configured such that the at least outwardly extending projection presses against the abutment it and transmits driving force to the abutment in order to rotate the rotor when the rotor shaft is rotated; and (B) a rotor connected to the second end of the rotor shaft, the rotor including the upper surface, a rotor opening, the elongated section, the at least one abutment, and the rotor cavity.