Patents by Inventor Steven Rewalt

Steven Rewalt 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).

  • Spin-welded electrical ground assemblies
    Patent number: 9887468
    Abstract: A friction-welded ground assembly that includes an alloy substrate with a clearance hole; an aluminum alloy weld nut having a bolt bore and an outer wall; and a grounding bolt. The bore is located substantially within the clearance hole and a portion of the outer wall is joined to the substrate at a friction-welded attachment. Further, the bolt is threaded within the bore. In addition, a method for making a ground includes the steps: rotating an aluminum alloy weld nut having an outer wall at a predetermined speed; lowering the outer wall of the rotating nut into contact with an aluminum alloy substrate to generate a frictional force for a friction time; arresting the rotation of the nut; and applying an axial forging force to the outer wall and the substrate for a forging time.
    Type: Grant
    Filed: January 31, 2017
    Date of Patent: February 6, 2018
    Assignee: Ford Global Technologies, LLC
    Inventors: Lawrence J. Dupuis, Michael William Danyo, Kimberly Ann Lazarz, Steven Rewalt
  • SPIN-WELDED ELECTRICAL GROUND ASSEMBLIES
    Publication number: 20170141484
    Abstract: A friction-welded ground assembly that includes an alloy substrate with a clearance hole; an aluminum alloy weld nut having a bolt bore and an outer wall; and a grounding bolt. The bore is located substantially within the clearance hole and a portion of the outer wall is joined to the substrate at a friction-welded attachment. Further, the bolt is threaded within the bore. In addition, a method for making a ground includes the steps: rotating an aluminum alloy weld nut having an outer wall at a predetermined speed; lowering the outer wall of the rotating nut into contact with an aluminum alloy substrate to generate a frictional force for a friction time; arresting the rotation of the nut; and applying an axial forging force to the outer wall and the substrate for a forging time.
    Type: Application
    Filed: January 31, 2017
    Publication date: May 18, 2017
    Applicant: Ford Global Technologies, LLC
    Inventors: Lawrence J. Dupuis, Michael William Danyo, Kimberly Ann Lazarz, Steven Rewalt
  • Spin-welded electrical ground and spin welding methods
    Patent number: 9601837
    Abstract: A friction-welded ground assembly that includes an alloy substrate with a clearance hole; an aluminum alloy weld nut having a bolt bore and an outer wall; and a grounding bolt. The bore is located substantially within the clearance hole and a portion of the outer wall is joined to the substrate at a friction-welded attachment. Further, the bolt is threaded within the bore. In addition, a method for making a ground includes the steps: rotating an aluminum alloy weld nut having an outer wall at a predetermined speed; lowering the outer wall of the rotating nut into contact with an aluminum alloy substrate to generate a frictional force for a friction time; arresting the rotation of the nut; and applying an axial forging force to the outer wall and the substrate for a forging time.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: March 21, 2017
    Assignee: Ford Global Technologies, LLC
    Inventors: Lawrence J. Dupuis, Michael William Danyo, Kimberly Ann Lazarz, Steven Rewalt
  • SPIN-WELDED ELECTRICAL GROUND AND SPIN WELDING METHODS
    Publication number: 20150222027
    Abstract: A friction-welded ground assembly that includes an alloy substrate with a clearance hole; an aluminum alloy weld nut having a bolt bore and an outer wall; and a grounding bolt. The bore is located substantially within the clearance hole and a portion of the outer wall is joined to the substrate at a friction-welded attachment. Further, the bolt is threaded within the bore. In addition, a method for making a ground includes the steps: rotating an aluminum alloy weld nut having an outer wall at a predetermined speed; lowering the outer wall of the rotating nut into contact with an aluminum alloy substrate to generate a frictional force for a friction time; arresting the rotation of the nut; and applying an axial forging force to the outer wall and the substrate for a forging time.
    Type: Application
    Filed: January 31, 2014
    Publication date: August 6, 2015
    Applicant: Ford Global Technologies, LLC
    Inventors: Lawrence J. Dupuis, Michael William Danyo, Kimberly Ann Lazarz, Steven Rewalt