Patents by Inventor Konny Johansson

Konny Johansson 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).

  • Shotgun cartridge case-sleeve and a cartridge made therefrom
    Patent number: 6305291
    Abstract: Shotgun cartridge cases are disclosed which are produced from a unitary body of plastic material. The shotgun cartridge cases include a cylindrical wall with a based portion which includes a central opening adapted to receive a primer, and a number of grooves extending axially from the end plane of the cartridge case and defining displaceable regions of the base portion whereby these displaceable regions are axially displaceable by means of powder charge gases released by the cartridge. Shotgun cartridges are also disclosed.
    Type: Grant
    Filed: February 4, 2000
    Date of Patent: October 23, 2001
    Assignee: Tomscot HB
    Inventors: Roland Karlsson, Konny Johansson