Patents by Inventor Derek Edward Pulsifer

Derek Edward Pulsifer 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).

  • Publication number: 20230373047
    Abstract: An elongated T-slot protection device comprising an elongated member having a body, a pair of sidewalls, and a pair of legs. The protection device is placeable into an elongated opening of a T-slot, and covers the elongated opening to prevent debris from entering the T-slot formed in a work surface.
    Type: Application
    Filed: July 31, 2023
    Publication date: November 23, 2023
    Inventor: Derek Edward Pulsifer
  • Patent number: 11712772
    Abstract: An elongated T-slot protection device comprising an elongated member having a body, a pair of sidewalls, and a pair of legs. The protection device is placeable into an elongated opening of a T-slot, and covers the elongated opening to prevent debris from entering the T-slot formed in a work surface.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: August 1, 2023
    Inventor: Derek Edward Pulsifer
  • Patent number: 11338401
    Abstract: A work holding clamp system for securing a workpiece to a work surface having a work surface T-slot arranged along an ‘X’ axis, comprised of a base plate secured to the work surface and having a plurality of T-slots, each of the plurality of T-slots are aligned with one of a plurality of axis including at least the ‘X’ axis and a ‘Y’ axis that is transverse to the ‘X’ axis. The work holding clamp system includes a workholding element selected from the group consisting of wedge clamps, pivot clamps and workstops, that may be secured within a T-slot of the plurality of T-slots provided in the base plate.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: May 24, 2022
    Inventor: Derek Edward Pulsifer
  • Patent number: 11338402
    Abstract: A workholding clamp for securing a workpiece to a work surface comprised of a fixed body secured to the work surface and having a first inclined surface; a sliding jaw having a second inclined surface residing against and parallel to the first inclined surface, a clamp face and at least one obround opening; and at least one clamping fastener residing within the at least one obround opening and being tightened to cause the second inclined surface to slide against the first inclined surface. A workholding pivot clamp for securing a workpiece to a work surface, and a work stop for reliably locating a workpiece relative to a work surface are also described.
    Type: Grant
    Filed: February 10, 2020
    Date of Patent: May 24, 2022
    Inventor: Derek Edward Pulsifer
  • Publication number: 20210245314
    Abstract: A workholding clamp for securing a workpiece to a work surface comprised of a fixed body secured to the work surface and having a first inclined surface; a sliding jaw having a second inclined surface residing against and parallel to the first inclined surface, a clamp face and at least one obround opening; and at least one clamping fastener residing within the at least one obround opening and being tightened to cause the second inclined surface to slide against the first inclined surface. A workholding pivot clamp for securing a workpiece to a work surface, and a work stop for reliably locating a workpiece relative to a work surface are also described.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 12, 2021
    Inventor: Derek Edward Pulsifer
  • Publication number: 20210245313
    Abstract: A work holding clamp system for securing a workpiece to a work surface having a work surface T-slot arranged along an ‘X’ axis, comprised of a base plate secured to the work surface and having a plurality of T-slots, each of the plurality of T-slots are aligned with one of a plurality of axis including at least the ‘X’ axis and a ‘Y’ axis that is transverse to the ‘X’ axis. The work holding clamp system includes a workholding element selected from the group consisting of wedge clamps, pivot clamps and workstops, that may be secured within a T-slot of the plurality of T-slots provided in the base plate.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 12, 2021
    Inventor: Derek Edward Pulsifer
  • Publication number: 20210245316
    Abstract: An elongated T-slot protection device comprising an elongated member having a body, a pair of sidewalls, and a pair of legs. The protection device is placeable into an elongated opening of a T-slot, and covers the elongated opening to prevent debris from entering the T-slot formed in a work surface.
    Type: Application
    Filed: February 10, 2020
    Publication date: August 12, 2021
    Inventor: Derek Edward Pulsifer