Patents by Inventor Denis J. Schaffer

Denis J. Schaffer 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: 11429758
    Abstract: In one or more embodiments, techniques are provided for modeling overhead line structures of electric railways that utilize a flexible, reusable structure template to automatically generate a 3D model of the overhead line structure. Each structure template includes a set of points that represent joints of the overhead line structure and components that represent elements of the overhead line structure. A feature definition of each joint and component includes properties, constraints and cell mappings. By mapping key points of reference lines for an overhead line structure to key points in an applicable structure templet for the overhead line structure, and applying the constraints and, in some cases the cell mappings, a 3D model of the overhead line structure is automatically generated. The 3D model may be a “low detail” stick representation for fast modeling, or, using the cell mappings, a “high detail” cell-based representation for very realistic modeling.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: August 30, 2022
    Assignee: Bentley Systems, Incorporated
    Inventors: Denis J. Schaffer, Kivanc Karakas
  • Patent number: 7551180
    Abstract: A system and method for graphically designing and testing end conditions is provided. The method and system allow for easy visualization and reuse of end condition components. A simple drag and drop methodology may be provided to allow for quick creation of end condition combinations. A user can create various different design scenarios. The system and method may determine which of those design scenarios is valid based on existing conditions. The testing environment may read the proposed end condition combination to determine targets. Various targets can be moved and placed in the testing environment in order to determine if the end condition combination is valid or not.
    Type: Grant
    Filed: March 18, 2004
    Date of Patent: June 23, 2009
    Assignee: Bentley System, Inc.
    Inventor: Denis J. Schaffer