Patents by Inventor Robert K. Dingman

Robert K. Dingman 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).

  • Dispenser for rolled sheet material
    Patent number: 5620128
    Abstract: A clamshell type container for dispensing paper having upper and lower hingedly connected portions. The container may be transparent, and may enclose a conventional box of wax paper or plastic wrap for dispensing. A safety front edge protects the user against cuts when cutting the dispensed paper. A resiliently-biased releasable locking mechanism holds the container in a closed position.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: April 15, 1997
    Assignee: Robert K. Dingman
    Inventors: Robert K. Dingman, Narasimha S. Paravastu