Patents by Inventor Darryl Hatfield

Darryl Hatfield 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).

  • Remanufactured prechamber device and method
    Patent number: 10184387
    Abstract: A prechamber ignition assembly for an internal combustion engine includes a base attached to a remanufactured prechamber ignition device at a base weld interface. The remanufactured prechamber ignition device includes a new tip formed of a tip material, and a root formed of a root material, with a used body formed of a body material disposed therebetween. The new tip is bonded to the used body at a tip weld interface and the root is bonded to the used body at a root weld interface.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: January 22, 2019
    Assignee: Caterpillar Inc.
    Inventors: Curtis Graham, Kegan Luick, Daniel Cavanaugh, Darryl Hatfield
  • Remanufactured Prechamber Device and Method
    Publication number: 20180216518
    Abstract: A prechamber ignition assembly for an internal combustion engine includes a base attached to a remanufactured prechamber ignition device at a base weld interface. The remanufactured prechamber ignition device includes a new tip formed of a tip material, and a root formed of a root material, with a used body formed of a body material disposed therebetween. The new tip is bonded to the used body at a tip weld interface and the root is bonded to the used body at a root weld interface.
    Type: Application
    Filed: January 27, 2017
    Publication date: August 2, 2018
    Applicant: Caterpillar Inc.
    Inventors: Curtis Graham, Kegan Luick, Daniel Cavanaugh, Darryl Hatfield