Patents by Inventor Marcello Cristiani

Marcello Cristiani 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).

  • Electromagnetic fuel metering and atomizing valve for a supply device on an internal combustion engine
    Patent number: 4778112
    Abstract: A valve having a body inside which slides a plugging member integral with a keeper forming part of a magnetic circuit, which circuit comprises the walls of the aforementioned body, and a core located inside the same. The body presents a bottom wall having a hole through which slides the aforementioned plugging member, and the keeper presents an annular projection located on one side in relation to the aforementioned wall and having an outside diameter greater than that of the aforementioned hole, so as to provide for substantially axial magnetic flow lines between the aforementioned bottom wall and the keeper.
    Type: Grant
    Filed: February 18, 1987
    Date of Patent: October 18, 1988
    Assignee: Weber S.r.I.
    Inventors: Roberto De Concini, Marcello Cristiani