Patents by Inventor David A. Bier

David A. Bier 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).

  • Method of spacing sheets and moving groups of spaced sheets
    Patent number: 4533073
    Abstract: A conveyor section advances a ribbon into a cutting station where sheets are severed from the glass ribbon. The sheets are advanced onto downstream conveyor rolls where the sheet is accelerated for a given period of time to space the trailing edge of the sheet from the leading edge of the ribbon, i.e., leading edge of the next sheet to be severed from the ribbon. When a predetermined number of spaced sheets are on the conveyor rolls, the conveyor rolls are accelerated to a speed greater than the ribbon conveying speed and spacing speed to move the group of sheets downstream along the conveyor section into additional working stations.
    Type: Grant
    Filed: July 14, 1980
    Date of Patent: August 6, 1985
    Assignee: PPG Industries, Inc.
    Inventor: David A. Bier
  • Apparatus for spacing sheets and moving groups of spaced sheets
    Patent number: 4341334
    Abstract: A conveyor section advances a ribbon into a cutting station where sheets are severed from the glass ribbon. The sheets are advanced onto downstream conveyor rolls where the sheet is accelerated for a given period of time to space the trailing edge of the sheet from the leading edge of the ribbon, i.e., leading edge of the next sheet to be severed from the ribbon. When a predetermined number of spaced sheets are on the conveyor rolls, the conveyor rolls are accelerated to a speed greater than the ribbon conveying speed and spacing speed to move the group of sheets downstream along the conveyor section into additional working stations.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: July 27, 1982
    Assignee: PPG Industries, Inc.
    Inventor: David A. Bier