Patents by Inventor Edmund Dee

Edmund Dee 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).

  • Balanced door closing apparatus
    Patent number: 5309676
    Abstract: A door closer is shown, which is installed between a door and a door frame, in a balanced door. The door closer is installed in a header of the door frame, and includes an operative connection to a hinge shaft upon which upper and lower door support arms pivot. The operative connection includes a first gear mounted on a check shaft which engages a second gear mounted on the hinge shaft. The second gear preferably has a larger effective diameter than the first gear whereby the limited rotation of the hinge shaft results in a greater rotation of the check shaft to fully utilize the closer functions.
    Type: Grant
    Filed: July 23, 1992
    Date of Patent: May 10, 1994
    Assignee: C. J. Rush A Division Of Derlan Manufacturing Inc.
    Inventors: Horst J. Appelmann, Edmund Dee