Patent Number: 7,028,740

Title: Self-activating threshold door seal

Abstract: An apparatus for providing a smoke barrier through a doorway comprising a door coupled to a doorframe and a threshold on the floor between the doorframe. A movable seal assembly is coupled to the threshold and a first seal is coupled to the doorframe for contacting a top and two sides of the door when the door is in the closed position. A bottom seal is coupled to the movable seal assembly for contacting a bottom of the door when the door is in the closed position.

Inventors: Clarady; Michael J. (Wichita, KS), Cutler; Lance A. (Maize, KS), Bitker; John A. (Wichita, KS)

Assignee: The Boeing Company

International Classification: E06B 1/04 (20060101)

Expiration Date: 4/18/02018