Patents by Inventor Curtis A. Henning

Curtis A. Henning 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: 12098466
    Abstract: A carburized steel component, comprising a steel base including, by weight percent, from 0.08% to 0.35% carbon, 0.5% to 1.3% manganese, 0% to 0.35% silicon, 0.2% to 2.0% chromium, 0% to 4% nickel, 0% to 0.50% molybdenum, 0% to 0.06% niobium, and a remaining weight percent of iron, and a carburized layer of above 0.35% by weight carbon from a surface of the carburized layer to a carburized layer depth, wherein the carburized layer depth is from 0.5 mm to 3.0 mm, wherein the carburized layer comprises a microstructure including martensite, retained austenite, carbide, and less than 2% by volume non-martensitic transformation products (NMTP), and wherein the carburized layer includes a prior austenite average grain size of 3.0-8.0 microns from the surface to a depth of at least 0.2 mm.
    Type: Grant
    Filed: March 8, 2023
    Date of Patent: September 24, 2024
    Assignee: Caterpillar Inc.
    Inventors: Michael A. Pershing, Curtis A. Henning, Robert J. Pickerill, Scott A. Johnston
  • Patent number: 11624106
    Abstract: A carburized steel component, comprising a steel base including, by weight percent, from 0.08% to 0.35% carbon, 0.5% to 1.3% manganese, 0% to 0.35% silicon, 0.2% to 2.0% chromium, 0% to 4% nickel, 0% to 0.50% molybdenum, 0% to 0.06% niobium, and a remaining weight percent of iron, and a carburized layer of above 0.35% by weight carbon from a surface of the carburized layer to a carburized layer depth, wherein the carburized layer depth is from 0.5 mm to 3.0 mm, wherein the carburized layer comprises a microstructure including martensite, retained austenite, carbide, and less than 2% by volume non-martensitic transformation products (NMTP), and wherein the carburized layer includes a prior austenite average grain size of 3.0-8.0 microns from the surface to a depth of at least 0.2 mm.
    Type: Grant
    Filed: March 18, 2020
    Date of Patent: April 11, 2023
    Assignee: Caterpillar Inc.
    Inventors: Michael A. Pershing, Curtis A. Henning, Robert J. Pickerill, Scott A. Johnston
  • Patent number: 10883249
    Abstract: A method of retaining a hammer tool in the front head of a powercell assembly of a hammer assembly includes biasing a hammer tool retaining pin such that a portion of the tool retaining pin extends into a tool receiving bore of the front head of the powercell assembly, holding a hammer tool in the tool receiving bore of the front head of the powercell assembly via the tool retaining pin, and releasing the hammer tool remotely from the hammer assembly.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: January 5, 2021
    Assignee: Caterpillar Inc.
    Inventors: Joshua Grzybowski, Dennis Wai Man Tang, Francis Eric Fortner, Curtis A. Henning
  • Publication number: 20190309498
    Abstract: A method of retaining a hammer tool in the front head of a powercell assembly of a hammer assembly includes biasing a hammer tool retaining pin such that a portion of the tool retaining pin extends into a tool receiving bore of the front head of the powercell assembly, holding a hammer tool in the tool receiving bore of the front head of the powercell assembly via the tool retaining pin, and releasing the hammer tool remotely from the hammer assembly.
    Type: Application
    Filed: April 6, 2018
    Publication date: October 10, 2019
    Applicant: Caterpillar Inc.
    Inventors: Joshua Grzybowski, Dennis Wai Man Tang, Francis Eric Fortner, Curtis A. Henning