Patents Assigned to Edward J. Krolak
  • Safety cartridge
    Patent number: 5394635
    Abstract: A firearm safety cartridge lodges a projectile in the breech end of the barrel of the firearm to prevent live ammunition from being inserted into the firing chamber of the firearm.
    Type: Grant
    Filed: February 2, 1993
    Date of Patent: March 7, 1995
    Assignee: Edward J. Krolak
    Inventor: John C. Stuart
  • Safety cartridge
    Patent number: 5347739
    Abstract: A firearm safety cartridge lodges a projectile in the breech end of the barrel of the firearm to prevent live ammunition from being inserted into the firing chamber of the firearm.
    Type: Grant
    Filed: November 25, 1992
    Date of Patent: September 20, 1994
    Assignee: Edward J. Krolak
    Inventor: John C. Stuart