Patents by Inventor Roberto Cal

Roberto Cal 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).

  • Apparatus for purification of plastic material intended for food contact
    Patent number: 11673293
    Abstract: A polyethylene terephthalate purification apparatus comprises at least a reactor (4) which houses the plastic material to be purified, an opening connected to a vacuum pump, stirrers (16) to ensure the stirring of the plastic material inside of the reactor (4) and a heating mechanism comprising a microwave heating device to promote the excitation of the polar molecules.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: June 13, 2023
    Assignee: Costruzioni Meccaniche Luigi Bandera S.p.A.
    Inventor: Roberto Cal
  • APPARATUS FOR PURIFICATION OF PLASTIC MATERIAL INTENDED FOR FOOD CONTACT
    Publication number: 20200101642
    Abstract: A polyethylene terephthalate purification apparatus comprises at least a reactor (4) which houses the plastic material to be purified, an opening connected to a vacuum pump, stirrers (16) to ensure the stirring of the plastic material inside of the reactor (4) and a heating mechanism comprising a microwave heating device to promote the excitation of the polar molecules.
    Type: Application
    Filed: June 19, 2018
    Publication date: April 2, 2020
    Inventor: Roberto CAL
  • Photovoltaic panel, relative production process and plant for carrying out such a process
    Patent number: 8048709
    Abstract: A photovoltaic panel made by direct co-extrusion of a plurality of superimposed polymeric layers and a plant for carrying out such a process.
    Type: Grant
    Filed: May 15, 2009
    Date of Patent: November 1, 2011
    Assignee: Costruzioni Meccaniche Luigi Bandera S.p.A.
    Inventors: Franco Bandera, Enrico Venegoni, Giovanni Della Rossa, Roberto Cal
  • PHOTOVOLTAIC PANEL, RELATIVE PRODUCTION PROCESS AND PLANT FOR CARRYING OUT SUCH A PROCESS
    Publication number: 20110059569
    Abstract: A photovoltaic panel made by direct co-extrusion of a plurality of superimposed polymeric layers and a plant for carrying out such a process.
    Type: Application
    Filed: May 15, 2009
    Publication date: March 10, 2011
    Inventors: Franco Bandera, Enrico Venegoni, Giovanni Della Rossa, Roberto Cal