Patents by Inventor Ernest W. Chupp

Ernest W. Chupp 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: 5193307
    Abstract: A double door swing control apparatus for facilitating the simultaneous opening of a pair of conventional, separately hinged double swing doors having hinges attached externally to the door such that the pivot axis of the door is external to the door. The invention includes a pair of spools and a pair of brackets secured to the top or bottom surface of the respective doors. A shaft connects each spool to a respective bracket, whereby movement of the associated door causes rotation of that spool. Cables connect and extend between the spools such that rotation of one spool causes an equal and opposite rotation of the other spool causing the doors to open and close in unison. The invention may be mounted either above or below the door.
    Type: Grant
    Filed: January 28, 1992
    Date of Patent: March 16, 1993
    Inventor: Ernest W. Chupp