Patents by Inventor Connor J DOCHERTY

Connor J DOCHERTY 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).

  • Carbide seat remanufacturing
    Patent number: 12629785
    Abstract: Typically, fluids used in fracking operations erode valve seats in the fluid end of the reciprocating pump. Thus, these valve seats must frequently be replaced by new valve seats. Accordingly, a remanufacturing process is disclosed that successively cleans and/or grinds manually or mechanically at least the carbide inserts from used valve seats until the inserts are reusable. This reduces material costs and promotes efficiency and sustainability.
    Type: Grant
    Filed: February 13, 2025
    Date of Patent: May 19, 2026
    Assignee: Caterpillar Inc.
    Inventors: Abel Noriega, II, Curtis John Graham, Christopher Anthony Kinney, Connor J Docherty, Blake Messer
  • Carbide seat remanufacturing
    Patent number: 12263549
    Abstract: Typically, fluids used in fracking operations erode valve seats in the fluid end of the reciprocating pump. Thus, these valve seats must frequently be replaced by new valve seats. Accordingly, a remanufacturing process is disclosed that successively cleans and/or grinds manually or mechanically at least the carbide inserts from used valve seats until the inserts are reusable. This reduces material costs and promotes efficiency and sustainability.
    Type: Grant
    Filed: August 23, 2023
    Date of Patent: April 1, 2025
    Assignee: Caterpillar Inc.
    Inventors: Abel Noriega, II, Curtis John Graham, Christopher Anthony Kinney, Connor J Docherty, Blake Messer
  • CARBIDE SEAT REMANUFACTURING
    Publication number: 20250065452
    Abstract: Typically, fluids used in fracking operations erode valve seats in the fluid end of the reciprocating pump. Thus, these valve seats must frequently be replaced by new valve seats. Accordingly, a remanufacturing process is disclosed that successively cleans and/or grinds manually or mechanically at least the carbide inserts from used valve seats until the inserts are reusable. This reduces material costs and promotes efficiency and sustainability.
    Type: Application
    Filed: August 23, 2023
    Publication date: February 27, 2025
    Applicant: Caterpillar Inc.
    Inventors: Abel NORIEGA, II, Curtis John GRAHAM, Christopher Anthony KINNEY, Connor J DOCHERTY, Blake MESSER