Patents by Inventor Craig Matthew Childers

Craig Matthew Childers 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).

  • Method of making a three-dimensional object by stereolithography
    Patent number: 6036911
    Abstract: An improved method for stereolithographically making an object by alternating the order in which similar sets of vectors are exposed over two or more layers. In another method, a pattern of tightly packed hexagonal tiles are drawn. Each tile is isolated from its neighboring tiles by specifying breaks of unexposed material between the tiles. Using an interrupted scan method, vectors are drawn with periodic breaks along their lengths. In another method, modulator and scanning techniques are used to reduce exposure problems associated with the acceleration and deceleration of the scanning system when jumping between vectors or changing scanning directions.
    Type: Grant
    Filed: January 27, 1998
    Date of Patent: March 14, 2000
    Assignee: 3D Systems, Inc.
    Inventors: Joseph W. Allison, Jan Richter, Craig Matthew Childers, Dennis R. Smalley, Charles W. Hull, Paul F. Jacobs