Patent ID: 8479378

Claim:
A method of manufacturing a stator core, said method comprising: stacking a plurality of teeth into a plurality of stacks, wherein said teeth are obtained from a jigsaw pattern of said teeth, said teeth are substantially identical to each other in size, each said tooth is substantially T-shaped as defined by two arms protruding sideways from a leg, in each said stack said teeth are substantially aligned with each other; winding said stacks with a plurality of windings; placing said stacks along the perimeter of a polygonal outer surface of a ferromagnetic tube having an inner channel extending therethrough, wherein each side of said outer surface corresponds to each said stack and contacts the bases of said legs of each said stack; inserting said stacks and said tube into an inner space defined by an annular inner surface of a mold and a shaft into said channel, wherein said stacks are stationed along the circumference of said inner surface, the top surfaces of the arms face said inner surface; vacuum encapsulating said inner space in an epoxy resin; and removing said mold and said shaft.