Patents by Inventor Paul Andrew Leggott

Paul Andrew Leggott 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: 11215321
    Abstract: A lubricant filter housing comprises a top plate defining a first opening. A base plate is positioned opposite the top plate. The lubricant filter housing further comprises at least one sidewall which cooperatively with the top plate and the base plate defines an internal volume. A plurality of plates are axially positioned in the internal volume between the top plate and the base plate. Each plate defines a plate opening axially aligned with the first opening which cooperatively with the first opening and a portion of the base plate, defines an internal cavity for housing a filter element. The plates define a first set of fluid channels structured to deliver a lubricant to the internal cavity, and a second set of fluid channels structured to provide a coolant around the first set of fluid channels.
    Type: Grant
    Filed: October 26, 2018
    Date of Patent: January 4, 2022
    Assignee: Cummins Inc.
    Inventors: James A. Dods, Paul Andrew Leggott
  • Publication number: 20200278083
    Abstract: A lubricant filter housing comprises a top plate defining a first opening. A base plate is positioned opposite the top plate. The lubricant filter housing further comprises at least one sidewall which cooperatively with the top plate and the base plate defines an internal volume. A plurality of plates are axially positioned in the internal volume between the top plate and the base plate. Each plate defines a plate opening axially aligned with the first opening which cooperatively with the first opening and a portion of the base plate, defines an internal cavity for housing a filter element. The plates define a first set of fluid channels structured to deliver a lubricant to the internal cavity, and a second set of fluid channels structured to provide a coolant around the first set of fluid channels.
    Type: Application
    Filed: October 26, 2018
    Publication date: September 3, 2020
    Applicant: CUMMINS INC.
    Inventors: James A. Dods, Paul Andrew Leggott
  • Patent number: 10724452
    Abstract: A cylinder head defines an EGR crossover tube integrally formed in the cylinder head. The EGR crossover tube includes a first end fluidly coupled to an exhaust port of an engine. A second end is fluidly coupled to an intake port of the engine. A Venturi tube configuration is positioned between the first and second ends. A first sensor port extends through the cylinder head to the EGR crossover tube. The first sensor port is positioned at a restriction of the Venturi tube configuration. A second sensor port extends through the cylinder head to the EGR crossover tube. The second sensor port is positioned proximate the first end. A differential pressure sensor includes a first pressure sensor positioned in the first sensor port and a second pressure sensor positioned in the second sensor port.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: July 28, 2020
    Assignee: Cummins Inc.
    Inventors: James A. Dods, John Jerl Purcell, John Peter Jones, John R. Anderson, Paul Andrew Leggott, Graham Dowson
  • Publication number: 20190264626
    Abstract: A cylinder head defines an EGR crossover tube integrally formed in the cylinder head. The EGR crossover tube includes a first end fluidly coupled to an exhaust port of an engine. A second end is fluidly coupled to an intake port of the engine. A Venturi tube configuration is positioned between the first and second ends. A first sensor port extends through the cylinder head to the EGR crossover tube. The first sensor port is positioned at a restriction of the Venturi tube configuration. A second sensor port extends through the cylinder head to the EGR crossover tube. The second sensor port is positioned proximate the first end. A differential pressure sensor includes a first pressure sensor positioned in the first sensor port and a second pressure sensor positioned in the second sensor port.
    Type: Application
    Filed: September 19, 2017
    Publication date: August 29, 2019
    Applicant: CUMMINS INC.
    Inventors: James A. Dods, John Jerl Purcell, John Peter Jones, John R. Anderson, Paul Andrew Leggott, Graham Dowson
  • Patent number: 10273842
    Abstract: An oil pan assembly including a first portion having an inner set of openings configured to receive a first set of fasteners to couple the first portion to an engine block and a second portion having an outer set of openings positioned laterally outward relative to the inner set of openings and configured to receive a second set of fasteners to couple the second portion to the first portion and the engine block.
    Type: Grant
    Filed: February 15, 2017
    Date of Patent: April 30, 2019
    Assignee: Cummins Inc.
    Inventors: Mathew A. Clark, William A. Pearce, Navdeep Kumar Jindal, Ryan T. Wainwright-Fisher, Ian Watson, Edward Tarn Bainbridge, Jonathan M. Atkinson, Andrew Skinner, Paul Andrew Leggott
  • Publication number: 20170234177
    Abstract: An oil pan assembly including a first portion having an inner set of openings configured to receive a first set of fasteners to couple the first portion to an engine block and a second portion having an outer set of openings positioned laterally outward relative to the inner set of openings and configured to receive a second set of fasteners to couple the second portion to the first portion and the engine block.
    Type: Application
    Filed: February 15, 2017
    Publication date: August 17, 2017
    Inventors: Mathew Clark, William A. Pearce, Navdeep Jindal, Ryan T. Wainwright-Fisher, Ian Watson, Edward T. Bainbridge, Jonathan M. Atkinson, Andrew Skinner, Paul Andrew Leggott