Patents by Inventor Jonathan W. Langenfeld

Jonathan W. Langenfeld 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).

  • Shot cup wad
    Patent number: 9778002
    Abstract: A wad or shot cup having a forward cylinder portion receiving a payload and a rear cylinder portion receiving a charge of propellant. One or more latent deceleration features can be formed in a surface of the sidewall extending along the rear cylinder portion. The latent deceleration features can be spaced apart from a rearward end of the shot cup and can be deployed to form deceleration petals after the shot cup is fired from a firearm. A series of longitudinal slits can be formed in the forward cylinder portion so that a portion of the sidewall expands radially adjacent the longitudinal slits after the shot cup is fired from a firearm for urging at least a portion of the payload to exit the forward cylinder portion.
    Type: Grant
    Filed: December 15, 2014
    Date of Patent: October 3, 2017
    Assignee: RA Brands, L.L.C.
    Inventors: Thomas J. Burczynski, Jonathan W. Langenfeld
  • SHOT CUP WAD
    Publication number: 20150176954
    Abstract: A wad or shot cup having a forward cylinder portion receiving a payload and a rear cylinder portion receiving a charge of propellant. One or more latent deceleration features can be formed in a surface of the sidewall extending along the rear cylinder portion. The latent deceleration features can be spaced apart from a rearward end of the shot cup and can be deployed to form deceleration petals after the shot cup is fired from a firearm. A series of longitudinal slits can be formed in the forward cylinder portion so that a portion of the sidewall expands radially adjacent the longitudinal slits after the shot cup is fired from a firearm for urging at least a portion of the payload to exit the forward cylinder portion.
    Type: Application
    Filed: December 15, 2014
    Publication date: June 25, 2015
    Inventors: Thomas J. Burczynski, Jonathan W. Langenfeld