Patents by Inventor Robert Wayne Fessenden

Robert Wayne Fessenden 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).

  • Door seal arrangements and methods
    Patent number: 8347649
    Abstract: A door seal arrangement and method for sealing between a door and a door frame on food processing equipment are provided. The door seal is inflatable to create a seal between the door and the door frame and deflatable to release the seal between the door and the door frame. An air supply applies positive air pressure to the door seal to inflate the door seal. A vacuum applies a negative air pressure to the door seal to deflate the door seal.
    Type: Grant
    Filed: July 17, 2008
    Date of Patent: January 8, 2013
    Assignee: Alkar-RapidPak-MP Equipment, Inc.
    Inventors: Jesse A. Gavin, Bryan Davis, Robert Wayne Fessenden, Dennis Conohan