Patents by Inventor Kenneth Wesley Cowans

Kenneth Wesley Cowans 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).

  • Pump system employing liquid filled rotor
    Patent number: 6626649
    Abstract: A long life rotor pump combination of the type having a liquid filled rotor that uses the liquid being pumped to establish hydrodynamic bearings within the rotor incorporates a pump which can be expanded to include more than one impeller, providing an optionally higher flow rate. Thermal isolation between the motor housing and the pump housing is assured by restricting heat conductivity through the physical structures and through the liquid. The rotor enclosure is formed with a number of engaging but not joined elements maintained under compression established by forces exerted in securing the encompassing motor housing.
    Type: Grant
    Filed: July 18, 2001
    Date of Patent: September 30, 2003
    Assignee: Advanced Thermal Sciences Corp.
    Inventor: Kenneth Wesley Cowans
  • Pump system employing liquid filled rotor
    Publication number: 20030017062
    Abstract: A long life rotor pump combination of the type having a liquid filled rotor that uses the liquid being pumped to establish hydrodynamic bearings within the rotor incorporates a pump which can be expanded to include more than one impeller, providing an optionally higher flow rate. Thermal isolation between the motor housing and the pump housing is assured by restricting heat conductivity through the physical structures and through the liquid. The rotor enclosure is formed with a number of engaging but not joined elements maintained under compression established by forces exerted in securing the encompassing motor housing.
    Type: Application
    Filed: July 18, 2001
    Publication date: January 23, 2003
    Applicant: ADVANCED THERMAL SCIENCES CORP.
    Inventor: Kenneth Wesley Cowans