Patents by Inventor Donald W. Greear

Donald W. Greear 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).

  • Mixer for aseptic liquids
    Patent number: 6854877
    Abstract: A mixer for an aseptic liquid in a vessel having a wall comprising a weldment post having a distal extremity inside the wall and having a proximal extremity outside the wall. The weldment post has a bore therein extending out through the proximal extremity of the weldment post. A motor driven magnet drive assembly is disposed in the bore in the weldment post. A hub carrying impellers is rotatably mounted on the weldment post. A magnet driven assembly is mounted in the hub and is disposed in close proximity to the magnet drive assembly but is separated therefrom by a liquid-tight seal. The magnet drive assembly includes a plurality of circumferentially spaced apart driven permanent magnets which are caged by bars to prevent movement of the driven permanent magnets with respect to the hub.
    Type: Grant
    Filed: October 16, 2002
    Date of Patent: February 15, 2005
    Assignee: Aseptic Controls Investment Co.
    Inventors: Luther Thomas Hoobyar, Donald W. Greear, Mark R. Embury
  • Mixer for aseptic liquids
    Publication number: 20040076076
    Abstract: A mixer for an aseptic liquid in a vessel having a wall comprising a weldment post having a distal extremity inside the wall and having a proximal extremity outside the wall. The weldment post has a bore therein extending out through the proximal extremity of the weldment post. A motor driven magnet drive assembly is disposed in the bore in the weldment post. A hub carrying impellers is rotatably mounted on the weldment post. A magnet driven assembly is mounted in the hub and is disposed in close proximity to the magnet drive assembly but is separated therefrom by a liquid-tight seal. The magnet drive assembly includes a plurality of circumferentially spaced apart driven permanent magnets which are caged by bars to prevent movement of the driven permanent magnets with respect to the hub.
    Type: Application
    Filed: October 16, 2002
    Publication date: April 22, 2004
    Applicant: Aseptic Controls Investment Co.
    Inventors: Luther Thomas Hoobyar, Donald W. Greear, Mark R. Embury