Patent ID: 8167020

Claim:
A door for a wall defining a doorway with an upper edge and a lateral edge, wherein the door is horizontally movable between an open position and a closed position such that the door obstructs the doorway when the door is in the closed position, and the door exposes the doorway when the door is in the open position, the door comprising: a track mountable in proximity with the upper edge of the doorway; a track follower mounted to the track for translation therealong; an elongate member extending downward from the track follower, the elongate member having a thickness defined by an outer dimension of the elongate member in a direction perpendicular relative to the doorway; a curtain that includes a leading edge and an upper edge, the leading edge is connected to the elongate member and is generally parallel thereto, the upper edge is generally perpendicular to the leading edge, the curtain having a thickness that is substantially thinner than the thickness of the elongate member, the curtain comprising a rear surface adjacent the doorway and a front surface opposite the rear surface; and a seal guide defining a seal groove extending in a substantially parallel relationship with the track so that the upper edge of the curtain protrudes into the seal groove and slides along the seal groove as the door opens and closes, the seal groove at least partially defined by a front seal portion enabled to seal along a portion of the front surface and a rear seal portion enabled to seal along a portion of the rear surface, at least one of the seal portions is positioned between the upper edge and a portion of the elongate member.