Patents by Inventor Jeffrey Leisy

Jeffrey Leisy 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).

  • Packing module and stuffing box assembly
    Patent number: 11300229
    Abstract: A stuffing box assembly for a valve includes a stuffing box and a packing module. The packing module carries one or more seals to engage with the stuffing box and a valve stem extending through the stuffing box. The packing module is able to be installed into, and removed from, the stuffing box as a single assembly. A valve stem can be formed with an integral ball on one end for engaging with a valve seat. The seals of the packing module create a fluid-tight seal against the valve stem and the stuffing box to inhibit fluid leakage through the stuffing box.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: April 12, 2022
    Assignee: PERFORMANCE OIL TOOLS, INC.
    Inventors: Thomas Buckner, Jeffrey Leisy
  • PACKING MODULE AND STUFFING BOX ASSEMBLY
    Publication number: 20210010614
    Abstract: A stuffing box assembly for a valve includes a stuffing box and a packing module. The packing module carries one or more seals to engage with the stuffing box and a valve stem extending through the stuffing box. The packing module is able to be installed into, and removed from, the stuffing box as a single assembly. A valve stem can be formed with an integral ball on one end for engaging with a valve seat. The seals of the packing module create a fluid-tight seal against the valve stem and the stuffing box to inhibit fluid leakage through the stuffing box.
    Type: Application
    Filed: April 9, 2020
    Publication date: January 14, 2021
    Inventors: Thomas Buckner, Jeffrey Leisy