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| Number | Title | Issue Date |
| 7235909 | Electromagnetic motor/generator In some embodiments, an electromagnetic motor/generator may include one or more of the following features: (a) a frame, (b) a magnetic section having an upper magnet, a lower magnet, and a center magnet, coupled to the frame, and (c) at least one solenoid coupled to... | 06/26/2007 |
| 5742110 | DC motor magnetic circuit configuration with high flux density A DC motor magnetic circuit configuration having reduced flux leakage and improved flux density that leads to greater motor efficiency and a higher motor constant. In one embodiment of the invention, and improved permanent magnet DC motor is provided that... | 04/21/1998 |
| 4390805 | Electromechanical machine A disc-type motor characterized by increased efficiency is disclosed. The motor has two parallel spaced stator members each having a flat circular shape and an even plurality of pie-segmented permanent-magnet poles in a circular array thereon, illustrativ... | 06/28/1983 |
| 4322646 | Flux focussed DC motor and method for assembly A DC motor utilizing flux focussing pole pieces and non-ferrous spacers to wedge the pole pieces and magnets into contact with the motor housing. Cooling is provided with heat pipes mounted in the spacers or pole pieces and/or the motor armature.... | 03/30/1982 |
| 4110645 | Electric motor An improved yet relatively inexpensive motor is provided by mounting commercially-available magnets together with pole pieces to the interior surfaces of the housing of a motor. The pole pieces are then shaped in part, in situ, so as to form a cylindrical... | 08/29/1978 |
| 4039871 | Cooling device for use in a low inertia electric motor A cooling device for use in a low inertia electric motor, in which there are provided a plurality of main passages for cooling air, around the outer circumferential surface of a cylindrical armature which surface is surrounded by magnetic pole pieces with... | 08/02/1977 |
| 3958139 | Electric motor with bridge-type magnetic circuits An improved electric motor having bridge-type magnetic circuits and including a magnetically permeable armature having first and second sets of salient rotor poles that are axially spaced apart and a permanent magnet stator structure. The stator structure... | 05/18/1976 |
