Patents by Inventor Russell J. Allan

Russell J. Allan 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).

  • Strength determination of sheet materials by utrasonic testing
    Patent number: 5672828
    Abstract: A method of determining strength and related mechanical properties of paper and similar products, both on-line and off-line using a continuous ultrasonic swept frequency wave transmission and reception system. The invention also provides an apparatus for measuring the strength and related mechanical properties of paper.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: September 30, 1997
    Assignee: Amcor Limited
    Inventor: Russell J. Allan
  • Paper board crease force measuring device
    Patent number: 5574227
    Abstract: An apparatus and method for determining the crease characteristics of a corrugated paper board sample including a sample location area, a load cell located such that a portion of the surface of the sample overlies the load cell, and a creasing edge which abuts a portion of the sample on the surface opposite the surface which overlies the load cell. Thus the portion of the sample opposite the load cell can be manually lifted to crease the product about the creasing edge, causing the portion of the sample which overlies the load cell to bear against the load cell, and with the force being measured by the load cell.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: November 12, 1996
    Assignee: Amcor Limited
    Inventor: Russell J. Allan