Patents Assigned to Basic Design Solutions, Inc.
  • Door communication device
    Patent number: 9714537
    Abstract: A door communication device for use with a door. The door communication device includes a rotatable message wheel for selectively displaying a selected one of a plurality of messages and a rotatable shaft that provides an optical viewing pathway through the door. The shaft is formed from an intumescent material that expands to block the bore of the shaft when sufficiently heated, such as by a fire, to inhibit the passage of heated air and smoke through the door.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: July 25, 2017
    Assignee: Basic Design Solutions, Inc.
    Inventor: Jay A. Maher