Patents by Inventor Kenneth L. Wilhelm

Kenneth L. Wilhelm 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).

  • Pneumatic tube system and blower assembly
    Patent number: 5735644
    Abstract: A blower assembly for a pneumatic transfer tube system alternately creates a pressure or a vacuum in a transfer tube. The blower is comprised of a housing having an internal cavity and a first and a second external port communicating with the cavity. A movable plate divides the internal cavity into two chambers which are generally isolated from each other. A blower having a vacuum end and a pressure end is mounted to the plate, wherein the vacuum end is on one side of the plate and the pressure end is on the other side of the plate. The blower when operating creates a pressure chamber on one side of the plate and a vacuum chamber on the other side of the plate.
    Type: Grant
    Filed: March 25, 1996
    Date of Patent: April 7, 1998
    Assignee: Diebold, Incorporated
    Inventors: Leo J. Grosswiller, Mark A. DePietro, Morton B. Albert, Kenneth L. Wilhelm, Robert J. Beck