Patents by Inventor Francis Renner

Francis Renner 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: 8640625
    Abstract: A kinetic energy training cartridge simulates the performance, weight, length, and external geometry of a tactical cartridge. The training cartridge includes a cartridge case and a projectile that is secured to cartridge case by means of a sabot. The sabot includes a rearward extension that encapsulates part of the projectile, to add weight and to increase a length to diameter ratio of the projectile, so as to decrease an intrusion volume of the projectile within the cartridge case. In a preferred embodiment, the length to diameter ratio of the projectile is at least 15.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: February 4, 2014
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Brian Wong, Andrew Gowarty, Francis Donlon, Francis Renner, Robert Sayer, Carlton Adam, Daniel Vo, John Dineen, Anthony Farina
  • Patent number: 6626113
    Abstract: A long-range training cartridge meets current US Army requirements. The long-range cartridge design enables its sub-projectile to be range limited to less than 8000 meters when fired at a 10-degree gun elevation. The long-range training projectile includes a three-piece aluminum or steel sabot with a similar exterior profile to the kinetic energy tactical sabot. The sabot encapsulates a light-weight sub-projectile comprised of a steel rod and an aluminum fin or cone. Since the sub-projectile is encapsulated in the sabot, it will not be subjected to differential pressures associated with interior ballistic gun gasses. As a result the sub-projectile will therefore have less bending and better flight characteristics. The sub-projectile meets the guidelines for target accuracy and precision at ranges beyond 3000 meters.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: September 30, 2003
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Stewart Gilman, Leon R. Manole, Francis Renner, Anthony P. Farina