Patents by Inventor Luis Josè Dacal

Luis Josè Dacal 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).

  • Method and electrical apparatus comprising a water tree resistant insulating composition
    Patent number: 6828505
    Abstract: The present invention is an improved electric insulation composition of a polymer and an additive that reduces water treeing due to electrical aging in water. The polymer additive is a hydrophobic/hydrophilic material with good compatibility with the polymer. The present invention is also a method of preventing electrical breakdown due to the formation of water trees by forming electrical cables with the insulation containing the disclosed anti-treeing additives.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: December 7, 2004
    Assignee: Pirelli Cavi S.p.A.
    Inventors: Franco Peruzzotti, Luca Castellani, Luis José Dacal, Valeria Garcia
  • Water tree resistant insulating composition
    Patent number: 6521695
    Abstract: The present invention is an improved electric insulation composition of a polymer and an additive that reduces water treeing due to electrical aging in water. The polymer additive is a hydrophobic/hydrophilic material with good compatibility with the polymer. The present invention is also a method of preventing electrical breakdown due to the formation of water trees by forming electrical cables with the insulation containing the disclosed anti-treeing additive.
    Type: Grant
    Filed: September 24, 1996
    Date of Patent: February 18, 2003
    Assignee: Pirelli Cavi S.p.A.
    Inventors: Franco Peruzzotti, Luca Castellani, Luis Josè Dacal, Valeria Garcia