Electromagnetic motor for operation in a high magnetic field environment

Abstract

A mechanically commutated motor (200) configured for use with an external magnetic field (240) is disclosed. The motor (200) includes an axle (208) formed of anon-magnetic material. A rotor (206) is coupled to the axle (208), the rotor (206) including three or more actuator units (205) spaced about the axle (208). Each actuator unit (205) comprises a non-magnetic material, a coil winding (214) along each of the three or more actuator units (205), and a commutator (216) coupled to the axle (208) and electrically associated with the coil windings (214). The motor (200) further includes two or more resilient contacts (210) oriented to direct a current through the commutator (216) to one of the coil windings (214) to induce a current in the coil winding (214) to form an electromagnet that rotates the rotor (206) relative to the external magnetic field (240) from a magnet located external to the mechanically commutated motor (200).

Dependencies are inferred from the claim text.