Patents by Inventor Luigi Metelli

Luigi Metelli 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).

  • Prefabricated girder in two halves and roof structure
    Patent number: 6581343
    Abstract: The invention concerns a girder in reinforced concrete that has a flat intrados (11) and a flat or sloping extrados (12), which consists of two symmetrical halves or girders (13, 14) with adjacent parts that meet in a plane mid-way (15), perpendicular to the intrados, and equipped, near the extrados (12), with connecting plates for bolting (16) and, near the intrados (11), with a joint device (17) that has bars which are parallel to the intrados.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: June 24, 2003
    Inventor: Luigi Metelli
  • Double slope beam in two halves
    Patent number: 6250031
    Abstract: The present invention concerns a double slope beam in vibrated or pre-compressed reinforced concrete, composed of two complementary halves or semi-beams (10) each with a reinforcing framework and with adjoining parts which are destined to be mated together incorporating some steel connecting plates (12, 13) that are anchored in the reinforcing framework by means of tie-rods. The two semi-beams are joined together by bolts at the time of forming the whole beam.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: June 26, 2001
    Inventor: Luigi Metelli