Patents by Inventor Guglielmino Ferretto

Guglielmino Ferretto 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).

  • Gun for sealing with sealing wax
    Patent number: 6511242
    Abstract: A gun for sealing with sealing wax which includes a handgrip, a tank melting-pot for the sealing wax, a feeding device, an injector, and a punch. The gun is heated by heating elements. The tank melting-pot is connected with the feeding device and with the injector which consists of a chamber provided, in its terminal part, with a nozzle in which a plunger slides. The punch consists of a sliding rod provided, in its end, with a metallic engraved or raised mark.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: January 28, 2003
    Inventor: Guglielmino Ferretto