Patents by Inventor Kurt T. Liebezeit

Kurt T. Liebezeit 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: 5197865
    Abstract: A pump assembly includes a pump head that is coupled to a permanent magnet rotor. The rotor is enclosed in a cavity defined by a fluid-tight cup that has an open first end and a closed second end. This cavity is in fluid connection with the pump head through its open first end. Outside the cup enclosure are disposed a plurality of electrical stator windings. A housing encloses all of the foregoing elements, and may also enclose a circuit board that includes circuitry for driving the stator windings. The pump assembly thereby provided is compact, efficient, and reliable.
    Type: Grant
    Filed: February 6, 1992
    Date of Patent: March 30, 1993
    Assignee: Micropump Corporation
    Inventors: Christophe J. Sevrain, Joseph J. Stupak, Jr., Kevin D. O'Hara, Kurt T. Liebezeit
  • Patent number: 5096390
    Abstract: A pump assembly includes a pump head that is coupled to a permanent magnet rotor. The rotor is enclosed in a cavity defined by a fluid-tight cup that has an open first end and a closed second end. This cavity is in fluid connection with the pump head through its open first end. Outside the cup enclosure are disposed a plurality of electrical stator windings. A housing encloses all of the foregoing elements, and may also enclose a circuit board that includes circuitry for driving the stator windings. The pump assembly thereby provided is compact, efficient, and reliable.
    Type: Grant
    Filed: October 16, 1990
    Date of Patent: March 17, 1992
    Assignee: Micropump Corporation
    Inventors: Christophe J. P. Sevrain, Joseph J. Stupak, Jr., Kevin D. O'Hara, Kurt T. Liebezeit