Patent ID: 7788863

Claim:
An astragal boot for mounting onto a lower end of an astragal disposed at a free end of a semi-active door in a double-door set disposed over a threshold, said astragal boot comprising; a platform, a pair of spaced lateral fins being flexible and projecting downwardly from said platform for sealing engagement with the threshold, a first primary fin being flexible and projecting downwardly from said platform a greater distance than said lateral fins and directly joined to and extending between said lateral fins for flexing against the threshold in sealing engagement with the threshold to form a cavity between said lateral fins and said first primary fin and said platform for disposition over the threshold, and a second primary fin disposed in said cavity and being flexible and projecting downwardly from said platform a greater distance than said lateral fins and directly joined to and extending between said lateral fins in said cavity in spaced relationship to said first primary fin.