Patents by Inventor Daniel A. Hahn

Daniel A. Hahn 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: 5356050
    Abstract: A new apparatus for supplying discreet amounts of glue to sheets of paper positioned beneath glue heads is presented. The new glue nozzle consists of an essentially vertical chamber into which air pressure is introduced perpendicularly to the vertical alignment of the chamber. A glue needle is inserted down the center of the vertical chamber. Glue is supplied through the glue needle in droplets by applying pressure to the glue bottle. As a glue droplet accumulates at the bottom of the glue supply needle, a pulse of air is sent into the glue chamber and pushes the droplet off of the glue needle and onto the target. As the next sheet is moved into place underneath the glue needle, another droplet accumulates. When the droplet and sheet are aligned, a pulse of air blasts the droplet off the end of the needle onto the next sheet.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: October 18, 1994
    Inventors: Daniel A. Hahn, Donald H. Stover