Patents by Inventor Mario Pinna

Mario Pinna 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).

  • Process and device for accelerating the drying of cement mixes
    Patent number: 5245149
    Abstract: Process for the accelerated drying of cement mixes includes the application to the cement mixes of electromagnetic microwaves. The device for the accelerated drying of cement mixes includes a chamber in the form of a tunnel, defined by a supporting framework in which are accommodated cement mixes, preferably on a casting bed, and microwave generator, in the form of a plurality of magnetrons supported by vertically adjustable cross members. The magnetrons are provided with telescopingly adjustable waveguides having an outlet in the chamber, and the supporting framework is slidable on a track.
    Type: Grant
    Filed: June 17, 1991
    Date of Patent: September 14, 1993
    Assignee: Immobiliare Centro Nord S.p.A.
    Inventors: Mario Pinna, Sergio Lai