Patents by Inventor Richard Davis Thomas

Richard Davis Thomas 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).

  • Injector including swirl device
    Patent number: 10927739
    Abstract: An injector includes a needle and a body. The needle is configured to receive fluid from a fluid supply and operable between a first position, in which the fluid is not provided to a target, and a second position, in which the fluid is provided to the target. The needle includes a first needle bore, a second needle bore, and a first connector. The first needle bore is configured to receive fluid from the fluid supply. The second needle bore is aligned with the first needle bore and configured to provide fluid to the fluid supply. The first connector is in fluid communication with the second needle bore. The body includes an end, a first body bore, and a second body bore. The first body bore is configured to receive the needle. The second body bore is positioned to be contiguous with the end.
    Type: Grant
    Filed: December 19, 2017
    Date of Patent: February 23, 2021
    Assignee: Cummins Emission Solutions Inc.
    Inventors: Anthony A. Shaull, Bradlee J. Stroia, Stephen M. Holl, Richard Davis Thomas, Michael Hays
  • Systems and methods for reducing the oil volume and windage in fuel pumps
    Patent number: 10677119
    Abstract: Systems and methods including spacers comprising a first face configured to engage with a cam shaft, a second face, and a third face operationally coupled to the first face and the second face, wherein the third face is configured to displace a lubricating fluid and permit rotation of the cam shaft are disclosed.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: June 9, 2020
    Assignee: Cummins Inc.
    Inventors: Anthony A. Shaull, Rodney J. Hemmerlein, Richard Davis Thomas
  • INJECTOR INCLUDING SWIRL DEVICE
    Publication number: 20180179938
    Abstract: An injector includes a needle and a body. The needle is configured to receive fluid from a fluid supply and operable between a first position, in which the fluid is not provided to a target, and a second position, in which the fluid is provided to the target. The needle includes a first needle bore, a second needle bore, and a first connector. The first needle bore is configured to receive fluid from the fluid supply. The second needle bore is aligned with the first needle bore and configured to provide fluid to the fluid supply. The first connector is in fluid communication with the second needle bore. The body includes an end, a first body bore, and a second body bore. The first body bore is configured to receive the needle. The second body bore is positioned to be contiguous with the end.
    Type: Application
    Filed: December 19, 2017
    Publication date: June 28, 2018
    Applicant: Cummins Emission Solutions Inc.
    Inventors: Anthony A. Shaull, Bradlee J. Stroia, Stephen M. Holl, Richard Davis Thomas, Michael Hays
  • SYSTEMS AND METHODS FOR CONTROLLING FUEL INJECTION INTO A PLURALITY OF FUEL RAILS
    Publication number: 20170298887
    Abstract: Fueling systems and methods are disclosed. Various fueling systems may comprise a single fuel pump configured to supply fuel to a first fuel rail at a first fuel pressure along a first fuel circuit and configured to supply fuel to a second fuel rail at a second fuel pressure along a second fuel circuit, wherein the first fuel rail and second fuel rail are arranged in parallel, and the first fuel circuit is independent of the second fuel circuit.
    Type: Application
    Filed: April 13, 2016
    Publication date: October 19, 2017
    Inventors: Lester L. Peters, Bradlee J. Stroia, Anthony Shaull, Rodney J. Hemmerlein, Richard Davis Thomas
  • SYSTEMS AND METHODS FOR REDUCING THE OIL VOLUME AND WINDAGE IN FUEL PUMPS
    Publication number: 20170254237
    Abstract: Systems and methods including spacers comprising a first face configured to engage with a cam shaft, a second face, and a third face operationally coupled to the first face and the second face, wherein the third face is configured to displace a lubricating fluid and permit rotation of the cam shaft are disclosed.
    Type: Application
    Filed: March 1, 2016
    Publication date: September 7, 2017
    Inventors: Anthony Shaull, Rodney J. Hemmerlein, Richard Davis Thomas