1
Charles D Syverson, Willard P Francis: Hybrid alternator. Ecoair, DeLio & Peterson, May 5, 1998: US05747909 (148 worldwide citation)

A hybrid alternator comprising a stator, and a rotor mounted for rotation within the stator and separated therefrom by an air gap. The rotor has a rotor core defining a plurality of magnetic poles wherein adjacent ones of the magnetic poles have alternating north and south magnetic fields. The plura ...


2
Charles D Syverson: Wind power generator and control therefore. Kinney Lange Braddock Westman and Fairbairn, February 16, 1982: US04316096 (63 worldwide citation)

A wind powered generator for generating electrical energy comprising a generator which has no slip rings between its field and armature, and which when mounted on a tower is controlled through suitable control mechanism to adjust the power output to a level compatible with the load and storage equip ...


3
Charles D Syverson, William P Curtiss: Hybrid alternator. Ecoair, DeLio & Peterson, May 19, 1998: US05753989 (56 worldwide citation)

A hybrid alternator comprising a stator, and a rotor mounted for rotation within the stator and separated therefrom by an air gap, said rotor having a rotor core defining a plurality of magnetic poles, adjacent ones of the magnetic poles having alternating north and south magnetic fields, the plural ...


4
Charles D Syverson, William P Curtiss: Hybrid alternator with voltage regulator. Ecoair, DeLio & Peterson, March 26, 1996: US05502368 (52 worldwide citation)

A hybrid alternator includes a stator and a rotor, with the rotor having longitudinally separate wound field and permanent magnet rotor portions. A rotor excitation circuit applies a forward polarity to the wound field rotor portion to increase output in a boosting mode at low RPMs and a reverse pol ...


5
Charles D Syverson: Modular gearless motorized conveyor roller. Motion Systems L C, Lathrop & Clark, June 12, 2001: US06244427 (50 worldwide citation)

A drive roller has a brushless D.C. motor with a stator or armature mounted on a fixed shaft and directly driving a 16 pole permanent magnet rotor mounted inside a roller tube. A motor controller drive supplies three-phase power to a Y-connected three phase winding having three groups of two coils, ...


6
Charles D Syverson: Hybrid alternator. Ecoair, DeLio & Peterson, March 14, 1995: US05397975 (39 worldwide citation)

A hybrid alternator includes a stator and a rotor, with the rotor having longitudinally separate wound field and permanent magnet rotor portions. A rotor excitation circuit applies a forward polarity to the wound field rotor portion to increase output in a boosting mode at low RPMs and a reverse pol ...


7
William J LaVelle, Charles D Syverson, William P Curtiss: Vehicle based AC power system. Ecoair, DeLio & Peterson, August 12, 1997: US05656922 (39 worldwide citation)

A vehicle based AC power system includes a specialized high efficiency vehicle alternator capable of supplying its maximum rated DC output current, even when being driven by an idling vehicle engine, to power a DC to AC inverter and provide maximum rated AC power at any engine speed. The alternator ...


8
Charles D Syverson, William P Curtiss: Hybrid alternator with voltage regulator. Ecoair, DeLio & Peterson, May 20, 1997: US05631544 (34 worldwide citation)

A hybrid alternator includes a stator winding and a rotor winding. The stator winding includes a neutral point having a neutral point voltage and is preferably arranged as a three phase winding with the neutral point being located at the center junction of three stator winding portions arranged in a ...


9
Charles D Syverson: Gearless motorized roller with variable frequency controller. Motion Systems L C L L C, Lathrop & Clark, July 6, 1999: US05918728 (34 worldwide citation)

A drive roller for a conveyor is rotated by a brushless D.C. motor without any intervening gear reducer. The drove roller has a laminated metal stator with at least three windings external to the stator core. The stator is fixed to a rigid axially extending shaft which supports a roller tube and a p ...


10
Charles D Syverson: Gearless motorized conveyor roller. Motion Systems L C, Lathrop & Clark, March 27, 2001: US06206181 (26 worldwide citation)

The drive roller of this invention utilizes a brushless D.C. motor which has a stator or armature mounted on a fixed shaft which directly drives a permanent magnet rotor mounted inside a roller tube. A variable frequency drive supplies three-phase power to a Y-connected three phase winding which is ...