Patents by Inventor Andreas BJÄRSTÄTT

Andreas BJÄRSTÄTT 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: 10139208
    Abstract: A jacketed tracer projectile intended for small-caliber and medium-caliber weapons includes a metal core including a tracer device, in particular in the form of a pyrotechnic tracer charge, disposed inside a cavity in the metal core in the rear part of the projectile. The cavity is designed to prevent the tracer device from becoming separated from the cavity during the discharge phase of the tracer projectile. The cross-sectional area of the cavity is typically polygonal. A method for the application of the tracer device in the tracer projectile is also provided.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: November 27, 2018
    Assignee: NAMMO VANÄSVERKEN AB
    Inventors: Åke Andersson, Andreas Bjärstätt, Henrik Johansson, Lina Norum
  • Publication number: 20180087882
    Abstract: A jacketed tracer projectile intended for small-caliber and medium-caliber weapons includes, a metal core including a tracer device, in particular in the form of a pyrotechnic tracer charge, disposed inside a cavity in the metal core in the rear part of the projectile. The cavity is designed to prevent the tracer device from becoming separated from the cavity during the discharge phase of the tracer projectile. The cross-sectional area of the cavity is typically polygonal. A method for the application of the tracer device in the tracer projectile is also provided.
    Type: Application
    Filed: March 29, 2016
    Publication date: March 29, 2018
    Applicant: NAMMO VANÄSVERKEN AB
    Inventors: Åke ANDERSSON, Andreas BJÄRSTÄTT, Henrik JOHANSSON, Lina NORUM