Patents by Inventor Thomas Bartholf

Thomas Bartholf 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).

  • Publication number: 20110249528
    Abstract: A mixer assembly for generating and maintaining a motion within a volume of liquid, the mixer assembly including a motor, a drive shaft and a propeller connected to the drive shaft. When the propeller is in operation, it is driven by the motor and rotates about a propeller axis. The mixer assembly's motor comprises a stator and a hybrid type rotor. The hybrid rotor includes a rotor core comprising an annular radially outer section of asynchronous type and an annular radially inner section of synchronous type arranged radially inside the annular radially outer section.
    Type: Application
    Filed: October 22, 2009
    Publication date: October 13, 2011
    Applicant: ITT Manufacturing Enterprises, Inc.
    Inventors: Katrin Wand, Jürgen Mökander, Rolf Lindeborg, Jörgen Engström, Tanja Hedberg, Thomas Bartholf
  • Patent number: D342307
    Type: Grant
    Filed: March 8, 1991
    Date of Patent: December 14, 1993
    Assignee: ITT Flygt AB
    Inventors: Thomas Bartholf, Folke Landquist, Bengt Sodergard