Patents by Inventor Frank N. Ruiz

Frank N. Ruiz 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: 5365696
    Abstract: A security door structure is affixed to an opening in a building wall exteriorly of a combination affixed glass door and sliding glass door to prevent in entrance by an intruder through the glass doors. The security door structure includes a first rigid metal frame with top and bottom rails and opposing vertical side rails and a plurality of rigid metal bars affixed between the rails. The metal bars are mounted at a predetermined distance from each other to prevent passage of a human body therebetween. The first metal frame is affixed exteriorly of the affixed glass door, and extends the same height and width as the affixed glass door. A second metal frame is pivotally mounted about a vertical axis to the first metal frame to swing between a closed position coplanar with the first metal frame and an open position pivoted exteriorly away from the coplanar position.
    Type: Grant
    Filed: March 31, 1994
    Date of Patent: November 22, 1994
    Inventor: Frank N. Ruiz