Patent ID: 7825549

Claim:
A linear motor comprising: a magnet track including a plurality of permanent magnets; and a coil assembly including a plurality of laminations, the coil assembly defining a plurality of teeth having slots therebetween, the plurality of teeth including (1) two end teeth and (2) at least one non-end tooth arranged between the two end teeth, each of the two end teeth defining an end profile including a first surface and a second surface, the first surface and the second surface being separated by a step which is substantially perpendicular to a plane defined by the plurality of magnets, the coil assembly also including a plurality of coils at least partially disposed in at least a portion of the slots defined by the plurality of teeth, where the first surface is closer to the at least one non-end tooth than the second surface, and the second surface is configured at an acute angle with respect to the step.