Patents by Inventor Kenneth G. Mark

Kenneth G. Mark 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 sleeve assembly and method for field repair procedure
    Patent number: 11192210
    Abstract: A retaining ring configured for in-field repair of a fuel injector sleeve upper seal leak, comprising: a circular side wall comprising a barrel-shaped outer surface and a substantially cylindrical inner surface; wherein the outer surface comprises a lower curved portion and a central portion having a curvature that is less pronounced than the lower curved portion; and wherein the lower curved portion is configured to guide the retaining ring into the fuel injector sleeve and the circular side wall has an outer diameter at the central portion that is larger than an inner diameter of the fuel injector sleeve at a location of the upper seal leak such that the retaining ring forces the fuel injector sleeve outwardly at the location of the upper seal leak as the retaining ring is moved into an installed position.
    Type: Grant
    Filed: June 20, 2017
    Date of Patent: December 7, 2021
    Assignee: Cummins Inc.
    Inventors: Jeffrey D. Lukasik, Kenneth G. Mark, Kent H. Clark
  • INJECTOR SLEEVE ASSEMBLY AND METHOD FOR FIELD REPAIR PROCEDURE
    Publication number: 20190255664
    Abstract: A retaining ring configured for in-field repair of a fuel injector sleeve upper seal leak, comprising: a circular side wall comprising a barrel-shaped outer surface and a substantially cylindrical inner surface; wherein the outer surface comprises a lower curved portion and a central portion having a curvature that is less pronounced than the lower curved portion; and wherein the lower curved portion is configured to guide the retaining ring into the fuel injector sleeve and the circular side wall has an outer diameter at the central portion that is larger than an inner diameter of the fuel injector sleeve at a location of the upper seal leak such that the retaining ring forces the fuel injector sleeve outwardly at the location of the upper seal leak as the retaining ring is moved into an installed position.
    Type: Application
    Filed: June 20, 2017
    Publication date: August 22, 2019
    Applicant: Cummins Inc.
    Inventors: Jeffrey D. Lukasik, Kenneth G. Mark, Kent H. Clark