Patents Represented by Attorney Anna M. Vradenburgh
  • Patent number: 5573722
    Abstract: A system for generating three-dimensional objects by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 12, 1996
    Assignee: 3D Systems, Inc.
    Inventor: Charles W. Hull
  • Patent number: 5571471
    Abstract: A system for generating three-dimensional objects by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: November 5, 1996
    Assignee: 3D Systems, Inc.
    Inventor: Charles W. Hull
  • Patent number: 5569431
    Abstract: A system for generating three-dimensional objects by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 29, 1996
    Assignee: 3D Systems, Inc.
    Inventor: Charles W. Hull
  • Patent number: 5569349
    Abstract: Apparatus for and related methods of forming three-dimensional objects out of a building material, which is normally solid, but which is flowable when heated. In one embodiment, a support material is used to fill in portions of layers which are not to be solidified as part of the object, thus providing support to otherwise unsupported portions of other layers. Advantageously, the support material is also normally solid and flowable when heated, and has a lower melting point than the building material enabling the support material to later be removed without damaging the object. In an alternative embodiment this support material can be used to build a support such as a web support, or the like, for supporting an object surface from a second surface.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 29, 1996
    Assignee: 3D Systems, Inc.
    Inventors: Thomas A. Almquist, Dennis R. Smalley
  • Patent number: 5556590
    Abstract: A system for generating three-dimensional objects by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, successive adjacent laminas, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: September 17, 1996
    Assignee: 3D Systems, Inc.
    Inventor: Charles W. Hull
  • Patent number: 5554336
    Abstract: A system for generating three-dimensional objects by creating a cross-sectional pattern of the object to be formed at a selected surface of a fluid medium capable of altering its physical state in response to appropriate synergistic stimulation by impinging radiation, particle bombardment or chemical reaction, successive adjacent laminae, representing corresponding successive adjacent cross-sections of the object, being automatically formed and integrated together to provide a step-wise laminar buildup of the desired object, whereby a three-dimensional object is formed and drawn from a substantially planar surface of the fluid medium during the forming process.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: September 10, 1996
    Assignee: 3D Systems, Inc.
    Inventor: Charles W. Hull