Patents by Inventor Armando Biaggi

Armando Biaggi 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).

  • Patent number: 4433721
    Abstract: The grid for the parallel rows of tubes is composed of metal guide strips and spacer strips. The guide strips are disposed in pairs with semi-cylindrical portions defining circular openings for the tubes. The spacer strips are formed with bent portions to bear against the semi-cylindrical portions of the guide strips as well as rectilinear portions which are radial to the tubes.
    Type: Grant
    Filed: August 3, 1981
    Date of Patent: February 28, 1984
    Assignee: Sulzer Brothers Limited
    Inventor: Armando Biaggi