Sensing Thickness Patents (Class 144/399)
  • Patent number: 6128989
    Abstract: A sawing apparatus comprises a base structure including bed rolls defining a horizontal bed plane for supporting a workpiece, a saw arbor carrying at least one saw for rotation about the central axis of the saw arbor, and a carriage supporting the saw arbor so that its central axis extends horizontally above the bed plane. A drive mechanism selectively raises and lowers the carriage relative to the base structure.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: October 10, 2000
    Assignee: Aaron U. Jones
    Inventors: Aaron U. Jones, Edward Komori
  • Patent number: 6085813
    Abstract: A method for making hardwood or decorative plywood. The plywood includes a number plies including a back veneer, a face veneer, and a number of core and center plies. The method forms subunits of plies and stacks the discrete formed subunits to form a unit. The unit is processed to forms discrete hardwood panels. Subunits having different sets of plies are formed. The subunits are formed by sequencing the order of placement of the plies so that the face and back veneers do not touch the conveyor. This process enables line assembly of hardwood plywood. Without this sequencing, at least the back veneers would touch the conveyor subjecting the panel to aesthetic damage due to the nature of the outer veneers. This process also significantly reduced the labor necessary for forming the panels because numerous subunits can be formed simultaneously.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: July 11, 2000
    Assignee: Georgia-Pacific Corporation
    Inventors: Gary E. Elliott, Steve R. Bailey, David W. Cooper, Aaro John Campy