US Patent 11530571 Pet travel door system

A pet travel door system may include a door having an integrated pet travel door. The door may include a main body member having a door panel. A passageway may be formed in the door panel. A recess may be formed within the top and/or the bottom of the passageway. The system may include a structural member matingly engaged with the recess and a U-shaped structural member that overlies the recess having the structural member matingly engaged thereto. The structural member and the U-shaped structural member may have a through channel formed through a portion thereof. The main body member may have a respective receiving channel formed therein. The through channels formed in the structural member and the U-shaped structural member may be positioned to align with one another and with the respective receiving channel formed in the main body member.