Patents by Inventor Vamaraju S. R. Murthy

Vamaraju S. R. Murthy has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5191256
    Abstract: A rotor for an interior magnet rotary machine, such as motors and generators, is mass produced by forming an elongated structure. This structure has channels in the periphery thereof which are parallel to the longitudinal axis of the structure. The elongated structure is cut into rotor frames of a predetermined length having channels extending from one end to the opposite end thereof. Magnets are placed in the channels. Pole pieces may be placed on the magnets in the channels.The interior magnet rotary machine produced by this method has a rotor of a structure made of a rotor frame with channels extending from one end to the opposite end, and at least one magnet in a respective one of the channels. Thus, an efficient, low cost, mass producible, and easily assembled rotor for an interior magnet rotary machine is provided.
    Type: Grant
    Filed: December 15, 1989
    Date of Patent: March 2, 1993
    Assignee: American Motion Systems
    Inventors: Frederick B. Reiter, Jr., Brad C. Koelblinger, Daniel W. McGee, Vamaraju S. R. Murthy, John S. Draper
  • Patent number: 4757224
    Abstract: A full flux reversal variable reluctance machine is disclosed. The stator includes a plurality of poles and electrical windings surrounding a portion of the stator. The rotor comprises main and shunt components that have alternate sections of high and low magnetic permeability. The shunt and main components are magnetically isolated, and the sections of high and low magnetic permeability for one component are complementary to the sections on the other component. Variations in flux magnitude and direction are induced in the stator without reversing the flux direction in the rotor.
    Type: Grant
    Filed: September 24, 1986
    Date of Patent: July 12, 1988
    Assignee: Magnetics Research International Corp.
    Inventors: Daniel W. McGee, Frederick B. Reiter, Vamaraju S. R. Murthy