Patents by Inventor Janice D. Houston

Janice D. Houston 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: 6162364
    Abstract: A method and system for diamagnetic manipulation of an object in a surrounding medium in a low gravity environment is provided. The system can be used in various applications such as containerless materials processing, protein crystal growth, and particulate filtering. If the application requires directional manipulation of the object, at least one magnet or electromagnet is required. The object is repulsed by the magnet if the object is more strongly diamagnetic than the surrounding medium. If the object is less diamagnetic than the surrounding medium, however, then the object is effectively attracted to the magnet. For an application that requires suspension of the object, two oppositely polarized magnets are used to generate an appropriate magnetic field gradient to suspend the object in a location where opposing field vectors generated by the two magnets cancel each other out, producing a net field strength of zero.
    Type: Grant
    Filed: June 16, 1998
    Date of Patent: December 19, 2000
    Assignee: The Boeing Company
    Inventors: Brian J. Tillotson, Larry P. Torre, Janice D. Houston
  • Patent number: 6159271
    Abstract: A method and system for orienting diamagnetic liquids in a container in a low gravity environment includes at least one magnet. The magnet or magnets are placed at the end of the container opposite a desired location for the diamagnetic liquid. The magnetic field generated by the magnet creates a diamagnetic force that repels the diamagnetic liquid away from the magnet and toward the desired location.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: December 12, 2000
    Assignee: The Boeing Company
    Inventors: Brian J. Tillotson, Janice D. Houston