Patents Assigned to CSG Enterprises, Inc.
  • Patent number: 4064442
    Abstract: An electric motor having in each of the rotor and the stator a permanent magnet and an electromagnet of equal strength placed in parallel relation such that when the electromagnet coil is activated the flux of the magnets is additive and when the coil is deactivated the flux of the permanent magnet takes a closed circuit path through the electromagnet core, the rotor being mounted on a shaft for rotation relative to the stator and a commutator switch being included for alternately connecting and disconnecting the electromagnet coils to and from a power source, wherein capacitors are provided in the coil circuit. The capacitor and coil circuit is designed to have a resonant frequency roughly equal to or near the switching frequency of the commutator switch at the intended shaft operating speed, thereby causing the capacitors to alternately store energy from and discharge energy to the coils.
    Type: Grant
    Filed: March 17, 1976
    Date of Patent: December 20, 1977
    Assignee: CSG Enterprises, Inc.
    Inventor: Carlos Subieta Garron