Patents by Inventor Pierfranco Margaria

Pierfranco Margaria 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).

  • Sheet glass break method and machine
    Publication number: 20100012697
    Abstract: A method and machine whereby a sheet of glass, held on a table of the machine, is first scored to form at least one score line, and is then broken along the score line by transmitting vibratory action to the sheet, about the score line.
    Type: Application
    Filed: June 23, 2009
    Publication date: January 21, 2010
    Inventor: Pierfranco Margaria
  • Method and machine for grinding coated sheets of glass
    Patent number: 6609956
    Abstract: A machine for grinding coated sheets of glass has a supporting surface for a sheet of glass for grinding, and two grinding units located on opposite sides of the supporting surface; each grinding unit having at least one first grinding wheel for grinding a portion of a peripheral edge of the sheet of glass, and a second grinding wheel for removing a portion of the layer of material coating the sheet of glass.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: August 26, 2003
    Assignee: Bottero S.p.A.
    Inventor: Pierfranco Margaria
  • Belt conveyor for feeding sheets of glass on a grinding machine, and grinding machine comprising such a conveyor
    Publication number: 20020121427
    Abstract: On a machine for grinding sheets of glass, a sheet of glass for grinding is fed along a grinding path by a belt conveyor having a supporting structure, and a single powered toothed belt defined by a continuous supporting surface for supporting the sheet of glass; the belt having a retaining device which acts on the surface of the sheet of glass facing the supporting surface to keep the sheet of glass in contact with the supporting surface.
    Type: Application
    Filed: December 19, 2001
    Publication date: September 5, 2002
    Inventor: Pierfranco Margaria
  • Slat conveyor for feeding sheets of glass on a grinding machine, and grinding machine comprising such a conveyor
    Publication number: 20020092732
    Abstract: On a machine for grinding sheets of glass, a sheet of glass for grinding is fed to a grinding head by one or more slat conveyors, each of which has a supporting structure, and a number of powered pads having respective surfaces for supporting the sheet of glass; each pad having a respective vacuum retaining device movable between a retaining condition and a release condition respectively retaining and releasing the sheet of glass.
    Type: Application
    Filed: December 19, 2001
    Publication date: July 18, 2002
    Inventor: Pierfranco Margaria
  • Method and machine for grinding coated sheets of glass
    Publication number: 20020068514
    Abstract: A machine for grinding coated sheets of glass has a supporting surface for a sheet of glass for grinding, and two grinding units located on opposite sides of the supporting surface; each grinding unit having at least one first grinding wheel for grinding a portion of a peripheral edge of the sheet of glass, and a second grinding wheel for removing a portion of the layer of material coating the sheet of glass.
    Type: Application
    Filed: November 21, 2001
    Publication date: June 6, 2002
    Inventor: Pierfranco Margaria