Patents by Inventor Dan Alexandru Barozzi

Dan Alexandru Barozzi 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 for the soldering of the cooler assembly to automobile radiators
    Patent number: 4037774
    Abstract: An improved method is disclosed for the soldering together of the cooling assembly of automobile radiators wherein aluminum fins, a first part of the cooling assembly, are etched in a solution consisting essentially of 10 to 14% sodium hydroxide, 4 to 7% zinc cyanide, 20 to 30% technical urea with the balance water for a period of 15 to 30 seconds at a temperature of 32 .degree. to 60.degree. C prior to undergoing treatment with a protective coating and eventual soldering to cooling pipes made of copper, brass, steel or aluminum, the remainder of the cooling assembly.
    Type: Grant
    Filed: September 12, 1975
    Date of Patent: July 26, 1977
    Assignee: Intreprinderea De Radiatoare Si Cabluri
    Inventors: Dan Alexandru Barozzi, Valentin Calin, Zsigmond Peter