Patents by Inventor Dustin Irvin Landwehr

Dustin Irvin Landwehr 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).

  • Noise attenuation components
    Patent number: 11808187
    Abstract: A reduction device includes a housing defining an input chamber configured to receive exhaust from a power source, an output chamber, an exhaust channel configured to direct the exhaust from the input chamber to the output chamber, and a longitudinal axis. The reduction device also includes a treatment unit disposed in the exhaust channel and along the longitudinal axis. The treatment unit is configured to at least partly remove pollutant species from the exhaust. The reduction device also includes an attenuation component disposed in the housing and radially outward of the treatment unit. The attenuation component is fluidly connected to the exhaust channel, and is configured to attenuate a range of frequencies corresponding to operation of the power source. Additionally, the exhaust channel prohibits exhaust entering the input chamber from exiting the housing without passing through the treatment unit.
    Type: Grant
    Filed: March 1, 2021
    Date of Patent: November 7, 2023
    Assignee: Caterpillar Inc.
    Inventors: Dustin Irvin Landwehr, Jim K Carroll, David Charles Copley, Rakesh Chandran Ramachandran, Timothy Josiah Lee, Yung T. Bui, Anthony C. Rodman
  • NOISE ATTENUATION COMPONENTS
    Publication number: 20220275737
    Abstract: A reduction device includes a housing defining an input chamber configured to receive exhaust from a power source, an output chamber, an exhaust channel configured to direct the exhaust from the input chamber to the output chamber, and a longitudinal axis. The reduction device also includes a treatment unit disposed in the exhaust channel and along the longitudinal axis. The treatment unit is configured to at least partly remove pollutant species from the exhaust. The reduction device also includes an attenuation component disposed in the housing and radially outward of the treatment unit. The attenuation component is fluidly connected to the exhaust channel, and is configured to attenuate a range of frequencies corresponding to operation of the power source. Additionally, the exhaust channel prohibits exhaust entering the input chamber from exiting the housing without passing through the treatment unit.
    Type: Application
    Filed: March 1, 2021
    Publication date: September 1, 2022
    Applicant: Caterpillar Inc.
    Inventors: Dustin Irvin Landwehr, Jim K. Carroll, David Charles Copley, Rakesh Chandran Ramachandran, Timothy Josiah Lee, Yung T. Bui, Anthony C. Rodman
  • Machine fluid system having filter protector for sock filter in manifold tube assembly
    Patent number: 11344826
    Abstract: A fluid system for a machine includes a tube assembly and a sock filter enveloping the tube assembly. The fluid system also includes a filter protector adjacent to a fastener in the tube assembly and including a first connector fitted with a first tube, a second connector fitted with a second tube, and a wall that arcs between the first connector and the second connector and limits contact between a sock filter enveloping the tube assembly and the fastener.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: May 31, 2022
    Assignee: Caterpillar Inc.
    Inventors: Kevin Edwin Malone, Shawn Richard Herold, Theron James Cassidy, Matthew Fahrenkrug, Dustin Irvin Landwehr
  • MACHINE FLUID SYSTEM HAVING FILTER PROTECTOR FOR SOCK FILTER IN MANIFOLD TUBE ASSEMBLY
    Publication number: 20200316500
    Abstract: A fluid system for a machine includes a tube assembly and a sock filter enveloping the tube assembly. The fluid system also includes a filter protector adjacent to a fastener in the tube assembly and including a first connector fitted with a first tube, a second connector fitted with a second tube, and a wall that arcs between the first connector and the second connector and limits contact between a sock filter enveloping the tube assembly and the fastener.
    Type: Application
    Filed: April 3, 2019
    Publication date: October 8, 2020
    Applicant: Caterpillar Inc.
    Inventors: Kevin Edward Malone, Shawn Richard Herold, Theron James Cassidy, Matthew Fahrenkrug, Dustin Irvin Landwehr