Patents by Inventor Juan Carlos Di Pietro

Juan Carlos Di Pietro 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).

  • Publication number: 20020073595
    Abstract: Improved devices for adapting revolvers for shooting practice with pellets. Advantages include qieter operation, no need of accesories for loading or unloading the primer and a universal size for cylinders of different lengths. A venturi passage separates the detonaing chamber from the bore, thereby accelerating and depressurizing the expansion gases and reducing noise. In one embodiment, the adaptor includes an internal cannon which is longitudinally displaced together with the pellet by the propulsion gasses. Improved adaptors are disclosed for pistols, for selfcentring a barrel liner and protecting rifling grooves.
    Type: Application
    Filed: October 19, 2001
    Publication date: June 20, 2002
    Inventor: Juan Carlos Di Pietro