Patents by Inventor David John Coldwell

David John Coldwell 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).

  • Reduced diameter head rivet
    Patent number: 10385900
    Abstract: An assembly, for example an automotive assembly, is provided that includes an upper workpiece, a lower workpiece, and a rivet extending through the upper workpiece and into the lower workpiece. The rivet, which may be a self-piercing rivet (SPR) in one form, includes a head portion and a shaft portion extending from the head portion. A diameter of the head portion (Hd) is less than or equal to a diameter of the shaft portion (Sd), and an interface between the head portion of the rivet and the upper workpiece is flush.
    Type: Grant
    Filed: March 24, 2017
    Date of Patent: August 20, 2019
    Assignee: Ford Global Technologies, LLC
    Inventors: David John Coldwell, Amanda Kay Freis, Garret Sankey Huff
  • REDUCED DIAMETER HEAD RIVET
    Publication number: 20180274577
    Abstract: An assembly, for example an automotive assembly, is provided that includes an upper workpiece, a lower workpiece, and a rivet extending through the upper workpiece and into the lower workpiece. The rivet, which may be a self-piercing rivet (SPR) in one form, includes a head portion and a shaft portion extending from the head portion. A diameter of the head portion (Hd) is less than or equal to a diameter of the shaft portion (Sd), and an interface between the head portion of the rivet and the upper workpiece is flush.
    Type: Application
    Filed: March 24, 2017
    Publication date: September 27, 2018
    Applicant: Ford Global Technologies, LLC
    Inventors: David John Coldwell, Amanda Kay Freis, Garret Sankey Huff