Patents by Inventor Charles James Powers

Charles James Powers 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).

  • Cooling system for a multistage electric motor
    Patent number: 8807970
    Abstract: A multistage electric motor includes a plurality of motor stages connected in series, each motor stage comprising a stator, and a rotor; a plurality of cooling fluid paths, each cooling fluid path forming a recirculating loop independent of the other cooling fluid paths, each cooling fluid path in communication with the stator of one of motor stages; and a cooling fluid flowing through each cooling fluid path, the cooling fluid removing heat from the stator of each motor stage. A submersible pump including the multistage electric motor, and a method of cooling the multistage electric motor are also described.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: August 19, 2014
    Assignee: Flowserve Management Company
    Inventors: Behrend Goswin Schlenhoff, Axel Helmut Tank-Langenau, Charles James Powers, Thomas Albers
  • COOLING SYSTEM FOR A MULTISTAGE ELECTRIC MOTOR
    Publication number: 20110211979
    Abstract: A multistage electric motor includes a plurality of motor stages connected in series, each motor stage comprising a stator, and a rotor; a plurality of cooling fluid paths, each cooling fluid path forming a recirculating loop independent of the other cooling fluid paths, each cooling fluid path in communication with the stator of one of motor stages; and a cooling fluid flowing through each cooling fluid path, the cooling fluid removing heat from the stator of each motor stage. A submersible pump including the multistage electric motor, and a method of cooling the multistage electric motor are also described.
    Type: Application
    Filed: February 26, 2010
    Publication date: September 1, 2011
    Inventors: Behrend Goswin Schlenhoff, Axel Helmut Tank-Langenau, Charles James Powers, Thomas Albers