Patents by Inventor Jason W. Imhoff

Jason W. Imhoff 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: 11067370
    Abstract: A multi-piece ammunition cartridge casing includes a casing base extending along a central axis and defining an opening extending axially into the casing base from the distal base end. The inner casing surface defines a circumferential groove with a groove radius greater than a radius of an adjacent portion of the opening. The cartridge casing also includes a casing body with a proximal end portion disposed in the opening of the casing base. The casing body is secured to the casing base by way of a flange protruding radially outward in mating contact with the circumferential groove.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: July 20, 2021
    Assignee: Sig Sauer, Inc.
    Inventors: Jason W. Imhoff, Thomas J. Burczynski, Keith E. Brown, Robert M. Grove
  • Patent number: 10866072
    Abstract: A multi-piece ammunition cartridge casing includes a casing base extending along a central axis and defining an opening extending axially into the casing base from the distal base end. The inner casing surface defines a circumferential groove with a groove radius greater than a radius of an adjacent portion of the opening. The cartridge casing also includes a casing body with a proximal end portion disposed in the opening of the casing base. The casing body is secured to the casing base by way of a flange protruding radially outward in mating contact with the circumferential groove.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: December 15, 2020
    Assignee: Sig Sauer, Inc.
    Inventors: Jason W. Imhoff, Thomas J. Burczynski
  • Publication number: 20200182594
    Abstract: A multi-piece ammunition cartridge casing includes a casing base extending along a central axis and defining an opening extending axially into the casing base from the distal base end. The inner casing surface defines a circumferential groove with a groove radius greater than a radius of an adjacent portion of the opening. The cartridge casing also includes a casing body with a proximal end portion disposed in the opening of the casing base. The casing body is secured to the casing base by way of a flange protruding radially outward in mating contact with the circumferential groove.
    Type: Application
    Filed: February 19, 2020
    Publication date: June 11, 2020
    Applicant: Sig Sauer, Inc.
    Inventors: Jason W. Imhoff, Thomas J. Burczynski, Keith E. Brown, Robert M. Grove
  • Publication number: 20190226817
    Abstract: A multi-piece ammunition cartridge casing includes a casing base extending along a central axis and defining an opening extending axially into the casing base from the distal base end. The inner casing surface defines a circumferential groove with a groove radius greater than a radius of an adjacent portion of the opening. The cartridge casing also includes a casing body with a proximal end portion disposed in the opening of the casing base. The casing body is secured to the casing base by way of a flange protruding radially outward in mating contact with the circumferential groove.
    Type: Application
    Filed: January 18, 2019
    Publication date: July 25, 2019
    Applicant: Sig Sauer, Inc.
    Inventors: Jason W. Imhoff, Thomas J. Burczynski
  • Patent number: 9506731
    Abstract: A multiple projectile fixed cartridge includes a casing, a retention insert arranged in the casing, and a plurality of projectiles arranged proximate the retention insert. The retention insert is configured to align and support at least a first projectile of the plurality of projectiles, and the casing is configured to align and support a second projectile of the plurality of projectiles.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 29, 2016
    Assignee: RA Brands, L.L.C.
    Inventor: Jason W. Imhoff
  • Publication number: 20140261042
    Abstract: A multiple projectile fixed cartridge includes a casing, a retention insert arranged in the casing, and a plurality of projectiles arranged proximate the retention insert. The retention insert is configured to align and support at least a first projectile of the plurality of projectiles, and the casing is configured to align and support a second projectile of the plurality of projectiles.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicant: RA BRANDS, L.L.C.
    Inventor: Jason W. Imhoff