Patents by Inventor Stacie L. VanDorin

Stacie L. VanDorin 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).

  • Simultaneous multiple layer curing in stereolithography
    Patent number: 6366825
    Abstract: A method and apparatus for making high resolution objects by stereolithography utilizing low resolution materials which are limited by their inability to form unsupported structures of desired thinness and/or their inability to form coatings of desired thinness. Data manipulation techniques, based on layer comparisons, are used to control exposure in order to delay solidification of the material on at least portions of at least some cross-sections until higher layers of material are deposited so as to allow down-facing features of the object to be located at a depth in the building material which is equal to or exceeds a minimum cure depth that can effectively be used for solidifying these features. Similar data manipulations are used to ensure minimum reliable coating thicknesses exist, above previously solidified material, before attempting solidification of a next layer. In addition, horizontal comparison techniques are used to provide enhanced cross-sectional data for use in forming the object.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: April 2, 2002
    Assignee: 3D Systems, Inc.
    Inventors: Dennis R. Smalley, Thomas J. Vorgitch, Chris R. Manners, Jocelyn M. Earl, Bryan J. L. Bedal, Charles W. Hull, Stacie L. VanDorin
  • Simultaneous multiple layer curing in stereolithography
    Patent number: 5597520
    Abstract: A method and apparatus for making high resolution objects by stereolithography utilizing low resolution materials which are limited by their inability to form unsupported structures of desired thinness and/or their inability to form coatings of desired thinness. Data manipulation techniques, based on layer comparisons, are used to control exposure in order to delay solidification of the material on at least portions of at least some cross-sections until higher layers of material are deposited so as to allow down-facing features of the object to be located at a depth in the building material which is equal to or exceeds a minimum cure depth that can effectively be used for solidifying these features. Similar data manipulations are used to ensure minimum reliable coating thicknesses exist, above previously solidified material, before attempting solidification of a next layer. In addition, horizontal comparison techniques are used to provide enhanced cross-sectional data for use in forming the object.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: January 28, 1997
    Inventors: Dennis R. Smalley, Thomas J. Vorgitch, Chris R. Manners, Charles W. Hull, Stacie L. VanDorin