Lock block assembly for an astragal

An astragal assembly for disposition between a semi-active door and an active door of a double-door set mounted in a door frame, said astragal assembly comprising:

• an astragal defining a channel;
• a lock block assembly slideable in said channel between a retracted position and an extended position,
• said lock block assembly including a body slideably disposed in said channel and a lift boot coupled to and resiliently extending from said body with said body presenting a distal end and with said lift boot including a fin extending away from said distal end of said body;
• said fin including a first and second lateral portion spaced from each other defining a cavity therebetween and a primary portion extending across said cavity from said first lateral portion to said second lateral portion so that said first lateral portion, said second lateral portion, and said primary portion resiliently bend to conform to seal against the door frame in said extended position;
• wherein said lift boot includes a platform coupled to said distal end of said body with said first lateral portion, said second lateral portion, and said primary portion extending from said platform defining said cavity between said first lateral portion, said second lateral portion, said primary portion, and said platform;
• and
• wherein said lock block assembly includes a bolt extending from said distal end and wherein said platform defines an aperture between said first lateral portion, said second lateral portion, and said primary portion with said bolt extending through said aperture for engagement with the door frame in the extended position.

A combination comprising:

• a threshold for disposition below a semi-active door and an active door;
• and
• an astragal assembly for disposition between the semi-active door and the active door, said astragal assembly comprising:
• an astragal defining a channel;
• a lock block assembly slideable in said channel between a retracted position spaced from said threshold and an extended position engaging said threshold,
• said lock block assembly including a body slideably disposed in said channel and a lift boot coupled to and resiliently extending from said body with said body presenting a distal end and with said lift boot including a fin extending away from said distal end of said body;
• said fin including a first and second lateral portion spaced from each other defining a cavity therebetween and a primary portion extending across said cavity from said first lateral portion to said second lateral portion with said first lateral portion, said second lateral portion, and said primary portion resiliently bent in said extended position to conform to seal against said threshold.