Patents by Inventor Patrick D. Chasteen

Patrick D. Chasteen 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).

  • High pressure common rail fuel pump outlet check valve retainer
    Patent number: 11624359
    Abstract: A pumping element comprises a first flow chamber; a second flow chamber in fluid connection with the first flow chamber, the second flow chamber including a shoulder; a check valve including a first insert and a second insert, the first insert being movable between a first position wherein the first insert forms a seal that inhibits fluid flow between the first and second flow chambers and a second position wherein the first insert permits fluid flow between the first and second flow chambers, the second insert being inserted into the second flow chamber to an extent limited by the shoulder; and a spring having a first end engaging the first insert and a second end engaging the second insert; wherein the first insert moves from the first position to the second position against a biasing force of the spring in response to pressurized fluid in the first flow chamber.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: April 11, 2023
    Assignee: Cummins Inc.
    Inventors: Anthony A. Shaull, Tamas Rauznitz, Brian M. Watson, Patrick D. Chasteen, Luke Allen Jones
  • HIGH PRESSURE COMMON RAIL FUEL PUMP OUTLET CHECK VALVE SPRING RETAINER METHOD
    Publication number: 20220003231
    Abstract: The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a first flow chamber; a second flow chamber in fluid connection with the first flow chamber, the second flow chamber including a shoulder; a check valve including a first insert and a second insert, the first insert being movable between a first position wherein the first insert forms a seal that inhibits fluid flow between the first and second flow chambers and a second position wherein the first insert permits fluid flow between the first and second flow chambers, the second insert being inserted into the second flow chamber to an extent limited by the shoulder; and a spring having a first end engaging the first insert and a second end engaging the second insert; wherein the first insert moves from the first position to the second position against a biasing force of the spring in response to pressurized fluid in the first flow chamber.
    Type: Application
    Filed: September 22, 2021
    Publication date: January 6, 2022
    Inventors: Anthony A. Shaull, Tamas Rauznitz, Brian M. Watson, Patrick D. Chasteen, Luke Allen Jones
  • High pressure common rail fuel pump outlet check valve spring retainer method
    Patent number: 11149727
    Abstract: The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a first flow chamber; a second flow chamber in fluid connection with the first flow chamber, the second flow chamber including a shoulder; a check valve including a first insert and a second insert, the first insert being movable between a first position wherein the first insert forms a seal that inhibits fluid flow between the first and second flow chambers and a second position wherein the first insert permits fluid flow between the first and second flow chambers, the second insert being inserted into the second flow chamber to an extent limited by the shoulder; and a spring having a first end engaging the first insert and a second end engaging the second insert; wherein the first insert moves from the first position to the second position against a biasing force of the spring in response to pressurized fluid in the first flow chamber.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: October 19, 2021
    Assignee: Cummins Inc.
    Inventors: Anthony A. Shaull, Tamas Rauznitz, Brian M. Watson, Patrick D. Chasteen, Luke Allen Jones
  • HIGH PRESSURE COMMON RAIL FUEL PUMP OUTLET CHECK VALVE SPRING RETAINER METHOD
    Publication number: 20180180007
    Abstract: The present disclosure generally relates to a pumping element of a fuel pump for an internal combustion engine wherein the pumping element comprises a first flow chamber; a second flow chamber in fluid connection with the first flow chamber, the second flow chamber including a shoulder; a check valve including a first insert and a second insert, the first insert being movable between a first position wherein the first insert forms a seal that inhibits fluid flow between the first and second flow chambers and a second position wherein the first insert permits fluid flow between the first and second flow chambers, the second insert being inserted into the second flow chamber to an extent limited by the shoulder; and a spring having a first end engaging the first insert and a second end engaging the second insert; wherein the first insert moves from the first position to the second position against a biasing force of the spring in response to pressurized fluid in the first flow chamber.
    Type: Application
    Filed: May 15, 2015
    Publication date: June 28, 2018
    Applicant: CUMMINS INC.
    Inventors: Anthony A. Shaull, Tamas Rauznitz, Brian M. Watson, Patrick D. Chasteen, Luke Allen Jones