Patent ID: 8910421

Claim:
An apparatus comprising: a jamb interface with a width connecting to a jamb interior face of a jamb along a vertical longitudinal axis of the jamb interior face, the jamb interface comprising a plurality of fingers with a proximal edge of each of the fingers extending in a range of 4 to 6.5 centimeters (cm) from an intersection of the jamb interface and a flap, each finger having a longitudinal axis extending parallel to each other, each finger having a finger height along the vertical longitudinal axis in a range of 1 to 1.5 cm and a finger length along each finger longitudinal axis in the range of 4 to 6.5 cm, wherein each finger is the same finger length, and each finger is separted from adjacent fingers by a spacing height in the range of 1 to 1.5 cm, and the plurality of fingers do no contact a section door; and the flap forming a seal between the section door and the jamb.