Patents by Inventor Bart Hardy

Bart Hardy 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).

  • Rotary bonding apparatus and method
    Patent number: 6368437
    Abstract: A rotary bonding apparatus includes a rotatable drum and one or more bonding elements, for example, ultrasonic horn and anvil assemblies, which rotate with the drum. The drum includes a web-supporting surface, and web material which is to be bonded rotates with the drum. The web material is positioned between the bonding elements and the web and bonding elements rotate at the same velocity so that the bonding elements are stationary relative to the web being bonded.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: April 9, 2002
    Assignee: Paper Converting Machine Company
    Inventors: Paul Ziegelhoffer, Bart Hardy, Michael Jarmuskiewicz, Frank Jocewicz