Patents by Inventor Jung-June Cheng

Jung-June Cheng 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: 5804738
    Abstract: A method and apparatus for testing the stiffness or strength of wood panels while the panels are moving along a production line, in which the panels are moved lengthwise through a tester having lower rollers which are situated to support side or end marginal portions only of the panel while central upper rollers contacts a central region of the panel and subjects the panel to longitudinal or lateral bending. The forces corresponding to the bending are measured and used to obtain a measure of the stiffness or strength of the panel. Preferably, both a longitudinal and a lateral tester are provided, and each have two testing stations each applying a different amount of lateral bending, all of these amounts being in the substantially linear portion of the load deflection curve.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: September 8, 1998
    Assignee: Alberta Research Council
    Inventors: Lars Bach, Jung-June Cheng