Patents by Inventor John E. Renaud

John E. Renaud 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).

  • Crashworthiness design methodology using a hybrid cellular automata algorithm for the synthesis of topologies for structures subject to nonlinear transient loading
    Patent number: 8880380
    Abstract: Crashworthiness designing of a structure using a Hybrid Cellular Automata (HCA) algorithm where field states are computed using finite element analysis (FEA) and the material distribution of the structure is updated at each iteration using cellular automata method. The HCA algorithm optimizes the topology of the structures to achieve certain performance within the limits of various constraints applied to ensure crashworthiness of the structures. The HCA algorithm may also be applied to designing of structures to be fabricated by an extrusion method having the same cross section along the direction of extrusion or stamped structures having thickness varying across the structure.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: November 4, 2014
    Assignees: Honda Motor Co., Ltd., The University of Notre Dame Du Lac
    Inventors: Kishore K. Pydimarry, Duane T. Detwiler, John E. Renaud, Neal M. Patel, Byungsoo Kang, Chandan K. Mozumder
  • CRASHWORTHINESS DESIGN METHODOLOGY USING A HYBRID CELLULAR AUTOMATA ALGORITHM FOR THE SYNTHESIS OF TOPOLOGIES FOR STRUCTURES SUBJECT TO NONLINEAR TRANSIENT LOADING
    Publication number: 20090164178
    Abstract: Crashworthiness designing of a structure using a Hybrid Cellular Automata (HCA) algorithm where field states are computed using finite element analysis (FEA) and the material distribution of the structure is updated at each iteration using cellular automata method. The HCA algorithm optimizes the topology of the structures to achieve certain performance within the limits of various constraints applied to ensure crashworthiness of the structures. The HCA algorithm may also be applied to designing of structures to be fabricated by an extrusion method having the same cross section along the direction of extrusion or stamped structures having thickness varying across the structure.
    Type: Application
    Filed: December 19, 2008
    Publication date: June 25, 2009
    Applicants: Honda Motor Co., Ltd., The University of Notre Dame du Lac
    Inventors: Kishore K. Pydimarry, Duane T. Detwiler, John E. Renaud, Neal M. Patel, Byungsoo Kang, Chandan K. Mozumder
  • Optical disk assembly
    Patent number: 4726008
    Abstract: Disclosed herein is an optical disk assembly of the type comprising a transparent plastic cover sheet which overlies, and protects from contamination, an optical recording media disposed on a substrate. Plastic spacer means are provided for spacing the cover sheet from the recording media. To avoid the disadvantages attendant the use of adhesives, the cover sheet is fused to the spacer means such as by a laser welding technique.
    Type: Grant
    Filed: October 20, 1986
    Date of Patent: February 16, 1988
    Assignee: Eastman Kodak Company
    Inventor: John E. Renaud