Patent ID: 8522821
Filing Date: 2013-09-03
Classification: H02K,Y10T

Abstract:
1. A torque motor, comprising: a frame and magnet assembly having an armature pivotably coupled thereto; a coil carried by the frame, the coil disposed at least partially about the armature; a first pole piece carried by the frame, the first pole piece disposed in proximity to a first coil portion and the first pole piece having a first armature face that opposes a first armature portion, the first armature face defining a first pole piece area; and a second pole piece carried by the frame, the second pole piece opposing the first pole piece, the second pole piece disposed in proximity to a second coil portion, the second coil portion opposing the first coil portion, the second pole piece having a second armature face that opposes a second armature portion, the second armature face defining a second pole piece area, the second pole piece area being less than the first pole piece area of the first pole piece.