Patents by Inventor Girolamo Barbieri

Girolamo Barbieri 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: 5652692
    Abstract: Removal of electrostatic charges from a body (3), in particular an article of manufacture submitted to electrostatic painting, is achieved by a device comprising an accumulation mass (2) made of lead and coupled with a copper drainage element (4), both having a ribbon-like structure and being rolled up in the form of a coil (5), upon interposition of an insulating layer (6) between the contiguous turns (5a). The drainage element (4) has an input terminal (7) disposed in the middle of the coil (5) and connected with the body (3), and an output terminal (8) disposed on the coil periphery and connected to the conventional grounding line (T).
    Type: Grant
    Filed: October 4, 1995
    Date of Patent: July 29, 1997
    Inventor: Girolamo Barbieri
  • Patent number: 5397605
    Abstract: In a method of electrostatic painting, the air to be conveyed towards the spraying nozzle (10) of a gun (9) together with the powdered paint, is enriched with at least one additive gaseous fluid consisting of at least one gas supplied from a feeding bottle (136, 137, 138, 139) and/or vapor obtained by submitting the air to bubbling through a working liquid (115). The additive fluid which has a greater electric conductivity than the air, causes an increase in the paint amount coated on the workpiece (11) in relation to the paint amount sprayed from the nozzle (10).
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: March 14, 1995
    Inventor: Girolamo Barbieri