Patents by Inventor David M. Cumming

David M. Cumming 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).

  • Publication number: 20240157771
    Abstract: A sliding door system for a vehicle includes a door frame defining a door opening and a sliding door covering at least a portion of the door opening in a closed position. An upper door slide assembly and a lower door slide assembly collectively interconnect the sliding door to the door frame and each are configured to slide the sliding door relative to the door frame from the closed position to an open position to dispose the sliding door either forward or rearward of the door opening. The lower door slide assembly includes a lower track extending along the sliding door and a lower hinge assembly pivotably connected to the door frame and slideably mated with the lower track for effectuating pivoting and sliding movement of the sliding door between the open and closed positions.
    Type: Application
    Filed: March 29, 2022
    Publication date: May 16, 2024
    Inventors: Lawrence M. PLOURDE, JR., David W. CUMMINGS
  • Patent number: 10870910
    Abstract: A number of variations may include a ferritic nitrocarburized part comprising steel, wherein the ferritic nitrocarburized steel has a tensile strength exceeding the parent steel material and sufficient ductility, bendability, and flangeability to support subsequent flanging and press-fitting of bushings. Exact strength increases and bendability will be dependent on exact process and alloy combinations.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: December 22, 2020
    Assignees: GM Global Technology Operations LLC, Woodworth Inc.
    Inventors: Michael L. Holly, Dennis Deciechi, James J. Gentile, David M. Cummings, Charles M. Enloe
  • Publication number: 20190211435
    Abstract: A number of variations may include a ferritic nitrocarburized part comprising steel, wherein the ferritic nitrocarburized steel has a tensile strength exceeding the parent steel material and sufficient ductility, bendability, and flangeability to support subsequent flanging and press-fitting of bushings. Exact strength increases and bendability will be dependent on exact process and alloy combinations.
    Type: Application
    Filed: January 10, 2018
    Publication date: July 11, 2019
    Inventors: Michael L. Holly, Dennis Deciechi, James J. Gentile, David M. Cummings, Charles M. Enloe
  • Patent number: 6923482
    Abstract: A bumper beam includes a first portion of a first material and a second portion of a second material. The first material has different material properties than the second material. For example, the first material may have a generally higher tensile or yield strength than the second material. In one embodiment, the first material comprises martensitic steel, while the second material comprises a dual-phase, multiphase, complex-phase or TRIP steel. In addition, the first material may have a different thickness than the second material. The bumper beam provides an improved strength to weight ratio than conventional bumper beams. This abstract is provided to comply with the rules requiring an abstract that allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope of the claims. 37 CFR 1.72(b).
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: August 2, 2005
    Assignee: Magna International Inc.
    Inventors: David M. Cumming, Gianfranco Gabbianelli, Jeffery J. Mellis, Hiroshi Uchiyama
  • Publication number: 20040262930
    Abstract: A bumper beam includes a first portion of a first material and a second portion of a second material. The first material has different material properties than the second material. For example, the first material may have a generally higher tensile or yield strength than the second material. In one embodiment, the first material comprises martensitic steel, while the second material comprises a dual-phase, multiphase, complex-phase or TRIP steel. In addition, the first material may have a different thickness than the second material. The bumper beam provides an improved strength to weight ratio than conventional bumper beams. This abstract is provided to comply with the rules requiring an abstract that allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope of the claims.
    Type: Application
    Filed: June 27, 2003
    Publication date: December 30, 2004
    Applicant: Magna International of America, Inc.
    Inventors: David M. Cumming, Gianfranco Gabbianelli, Jeffery J. Mellis, Hiroshi Uchiyama