Patents by Inventor Derek Alexander

Derek Alexander 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: 10752047
    Abstract: A laced wheel manufactured from a one-piece casting, including both the hub portion and the rim portion. After casting and machining spoke interfaces, the hub and rim portions are separated and wire spokes are assembled.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: August 25, 2020
    Assignee: Harley-Davidson Motor Company Group, LLC
    Inventors: Derek Alexander, Russell Barnett
  • Publication number: 20180056713
    Abstract: A laced wheel manufactured from a one-piece casting, including both the hub portion and the rim portion. After casting and machining spoke interfaces, the hub and rim portions are separated and wire spokes are assembled.
    Type: Application
    Filed: August 11, 2017
    Publication date: March 1, 2018
    Inventors: Derek Alexander, Russell Barnett
  • Publication number: 20070170018
    Abstract: A disc brake assembly is provided that includes a disc, a caliper, and a piston having a rear end slidably mounted in a bore in the caliper, a front end that faces the disc, and an inner axial surface. A brake pad is disposed between the piston and the disc. The brake pad has 1) a back plate having front and rear surfaces and 2) a friction pad mounted on the front surface of the back plate. A structure is situated on the rear surface of the back plate. The assembly also has an improved spring clip for holding the brake pad in the assembly. The spring clip is configured to be connectable to the structure on the rear surface of the back plate and engageable with the inner axial surface of the piston.
    Type: Application
    Filed: November 28, 2006
    Publication date: July 26, 2007
    Applicant: HB Performance Systems, Inc.
    Inventor: Derek Alexander
  • Publication number: 20070163851
    Abstract: A brake caliper includes a housing having at least one bore formed therein. A coolant passage is formed through the housing and extends radially outwardly from the bore and is fluidically coupled thereto. The coolant passage can accept a coolant, which can be actively moved or it can be passively moved. The brake caliper also has at least one piston slidably mounted in the bore. The piston can be made from a thermally conductive material. The piston can include a wall that is thicker at a first end there of than at the second end thereof. The thicker end is that which contacts a brake pad. A method of cooling a disc brake assembly is also provided. The coolant passage takes heat out of the disc brake assembly before it reaches the brake fluid. Heat is dissipated by thermal exchange into the caliper, coolant, and/or the atmosphere.
    Type: Application
    Filed: December 29, 2006
    Publication date: July 19, 2007
    Inventor: Derek Alexander