Patents by Inventor Maria Brugnoli

Maria Brugnoli 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).

  • Siphon with pressure priming and pneumatic reflux
    Patent number: 3973751
    Abstract: A liquid siphon including a tank and a pair of concentric shells within the tank. One end of the external-most shell has an enlarged bell part formed thereon. A deformable gasket is retained against an interior portion of the bell part to close the same. A passageway in the bell part communicates the interior thereof with the outside surface and is closed by the gasket when the same is deformed by priming the siphon.
    Type: Grant
    Filed: March 24, 1975
    Date of Patent: August 10, 1976
    Inventors: Maria Brugnoli, Francesco Amici