Patents Assigned to SinterFire Inc.
  • Frangible metal bullets, ammunition and method of making such articles
    Patent number: 6263798
    Abstract: A frangible metal article such as a bullet and a method for making it. The frangible metal article is formed from a mixture of metal particles and metal or metalloid binder material which is compacted into the desired shape, heated to a temperature above that needed to form at least one intermetallic compound but below the temperature of joining of the metal particles by sintering and below the temperature of formation of substantial amounts of a ductile alloy of the metal of the particles and the metal or metalloid binder material and then cooled. When such articles are formed into bullets they have sufficient strength to maintain their integrity during firing but disintegrate into powder on impact and can be formulated to be lead-free.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: July 24, 2001
    Assignee: SinterFire Inc.
    Inventor: Joseph C. Benini
  • Bullet
    Patent number: D502525
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: March 1, 2005
    Assignee: SinterFire Inc.
    Inventors: Joseph C. Benini, Thomas E. Styche
  • Cartridge
    Patent number: D447208
    Type: Grant
    Filed: February 22, 2000
    Date of Patent: August 28, 2001
    Assignee: SinterFire Inc.
    Inventor: Joseph C. Benini
  • Cartridge
    Patent number: D447209
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: August 28, 2001
    Assignee: SinterFire Inc.
    Inventor: Joseph C. Benini
  • Bullet
    Patent number: D452894
    Type: Grant
    Filed: January 10, 2001
    Date of Patent: January 8, 2002
    Assignee: Sinterfire Inc.
    Inventor: Joseph C. Benini