Patents by Inventor David W. Rudman

David W. Rudman 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).

  • Panel press with movable platens which are individually controlled with position-sensor transducers
    Patent number: 5634398
    Abstract: A multiple opening panel press is described with a plurality of movable platens which are individually controlled to adjust the spacing between adjacent platens to a predetermined panel width. Position-sensor transducers are employed to produce control signals corresponding to the platen positions which operate control cylinders by associated valves to adjust the platen spacing. The transducers are preferably sonic waveguides which interact with permanent magnets fixed to the movable platens to generate platen position signals which are applied to an automatic control system which includes a computer that produces the control signals.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: June 3, 1997
    Assignee: The Coe Manufacturing Co.
    Inventors: Arthur L. McGee, David W. Rudman
  • Method for combining partition and box blank and for making a double wall thickness box
    Patent number: 3930438
    Abstract: The method of assembly of a partition with a box blank to form a combination partition box in collapsed condition for shipping and use and for making a double wall thickness box.
    Type: Grant
    Filed: May 8, 1974
    Date of Patent: January 6, 1976
    Assignee: Union Camp Corporation
    Inventors: Howard T. Hackman, Ray Brown, William H. Friend, Stuart L. Natof, Eugene A. Reiter, David W. Rudman