# US 10,122,224 B2 · Electric motor assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,122,224 B2 - Document ID: US10122224B2 - Status: Granted - Kind: B2 - Application number: 14/981,202 - Filed: 2015-12-28 - Published: 2017-06-29 - Granted: 2018-11-06 - Earliest claimed: 2015-12-28 - Applicants: Filip Sammak - Inventors: Filip Sammak - Web page: https://patentgrep.com/patent/US10122224B2 ## CPC - H02K 1/12: Stationary parts of the magnetic circuit - H02K 1/22: Rotating parts of the magnetic circuit - H02K 16/00: Machines with more than one rotor or stator {(machines for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts H02K51/00; permanent magnet machines with multiple rotors or stators relatively rotated for vectorially combining the excitation fields or the armature voltages H02K21/029)} - H02K 23/00: DC commutator motors or generators having mechanical commutator; Universal AC/DC commutator motors - H02K: DYNAMO-ELECTRIC MACHINES (dynamo-electric relays H01H53/00; conversion of DC or AC input power into surge output power {H03K3/53}) ## Abstract An electric motor assembly includes an axle having a first end and a second end. A plurality of rotor stages is attached to the axle. The rotor stages each include a set of rotor magnets. Each set has a greater potential magnetic field as the sets are located further from the first end. A plurality of stators is positioned around the rotor stages so that each of the rotor stages is adjacent to and covered by one of the stators to define a plurality of mated pairs. The stators each include a plurality of stator magnets. A stator control, for controlling individual ones of the pairs, is electrically coupled to each of the stators and magnetizes the stator magnets in a controlled fashion with respect to the rotor magnets to urge the rotor magnets in a same direction and rotate the axle. ## Claims ### Claim 1 An electric motor assembly comprising: an axle having a first end and a second end; a plurality of rotor stages, each of said rotor stages being attached to said axle, each of said rotor stages including a set of rotor magnets, each set having a greater potential magnetic field as said sets are located further from said first end and closer to said second end, each of said rotor magnets having a an convexly arcuate outer surface facing away from said axle, said outer surfaces of each said rotor magnet of each set being increasingly spaced from said axle as said rotor sets are located on said axle from said first end of said axle towards said second end of said axle; a plurality of stators, said stators being positioned around said rotor stages such that each of said rotor stages is adjacent to and covered by one of said stators to define a plurality of mated pairs, wherein each mated pair includes one of said rotor stages and one of said stators, each of said stators including a plurality of stator magnets, each of said stator magnets having a concavely arcuate surface facing an associated one of said rotor stages; a stator control being electrically coupled to each of said stators, said stator control being configured to magnetize said stator magnets in a controlled fashion with respect to said rotor magnets to urge said rotor magnets in a same direction and rotate said axle, said stator control being configured to control only a single one of said mated pairs to adjust power output by said axle; and wherein said axle is configured to be utilized as rotational force for a drive shaft. ### Claim 2 (depends on 1) The assembly according to claim 1, wherein each of said rotor magnets comprises an electromagnet and being configured to be magnetized and demagnetized alternately, said stator control being electrically coupled to said rotor stages. ### Claim 3 (depends on 2) The assembly according to claim 2, wherein said associated ones of said rotor magnets being simultaneously magnetized or demagnetized. ### Claim 4 (depends on 1) The assembly according to claim 1, wherein said mated pairs are magnetically isolated from each other. ### Claim 5 An electric motor assembly comprising: an axle having a first end and a second end; a plurality of rotor stages, each of said rotor stages being attached to said axle, each of said rotor stages including a set of rotor magnets, each set having a greater potential magnetic field as said sets are located further from said first end and closer to said second end, each of said rotor magnets of each of said sets having a an convexly arcuate outer surface facing away from said axle, said outer surfaces of each said rotor magnet of each set being increasingly spaced from said axle as said rotor sets are located on said axle from said first end of said axle towards said second end of said axle, each of said rotor magnets of each of said sets being laterally spaced from associated ones of said rotor magnets in the same set, each of said rotor magnets comprising an electromagnet and being configured to be magnetized and demagnetized alternately, said associated ones of said rotor magnets being simultaneously magnetized or demagnetized; a plurality of stators, said stators being positioned around said rotor stages such that each of said rotor stages is adjacent to and covered by one of said stators to define a plurality of mated pairs, wherein each mated pair includes one of said rotor stages and one of said stators, each of said stators including a plurality of stator magnets, said mated pairs being magnetically isolated from each other, each of said stator magnets having a concavely arcuate surface facing an associated one of said rotor stages; a stator control being electrically coupled to said rotor stages, each of said stators being electrically coupled to said stator control, said stator control being configured to magnetize said stator magnets in a controlled fashion with respect to said rotor magnets to urge said rotor magnets in a same direction and rotate said axle, said stator control being configured to control only a single one of said mated pairs to adjust power output by said axle; and wherein said axle is configured to be utilized as rotational force for a drive shaft. ### Claim 6 An electric motor assembly comprising: an axle having a first end and a second end; a plurality of rotor stages, each of said rotor stages being attached to said axle, each of said rotor stages including a set of rotor magnets, each set having a greater potential magnetic field as said sets are located further from said first end and closer to said second end, each of said rotor magnets of each of said sets having a an convexly arcuate outer surface facing away from said axle, said outer surfaces of each said rotor magnet of each set being increasingly spaced from said axle as said rotor sets are located on said axle from said first end of said axle towards said second end of said axle, each of said rotor magnets of each of said sets being laterally spaced from associated ones of said rotor magnets in the same set, each of said rotor magnets comprising an electromagnet and being configured to be magnetized and demagnetized alternately; a stator being positioned around said rotor stages, said stator including a plurality of stator magnets, each of said stator magnets having a concavely arcuate surface facing an associated one of said rotor stages; a stator control being electrically coupled to said rotor stages, each of said stator magnets being electrically coupled to said stator control, said stator control being configured to magnetize said stator magnets in a controlled fashion with respect to said rotor magnets to urge said rotor magnets in a same direction and rotate said axle, said stator control being configured to control only a single one of said sets to adjust power output by said axle; and wherein said axle is configured to be utilized as rotational force for a drive shaft.