Patent ID: 8684205

Claim:
A bottle insert for substantially equalizing atmospheric air pressure with air pressure within a bottle when pouring a liquid from the bottle, the bottle insert comprising: an air inlet channel adapted for contacting at least a portion of an interior bottleneck wall and extending circumferentially around at least a portion of the interior bottleneck wall, the air inlet channel including a perimeter member contacting at least a portion of the interior bottleneck wall, the air inlet channel further including a distal base and an interior channel wall located substantially parallel to at least a portion of the perimeter member and offset radially to the interior of the perimeter member by the distal base, wherein an upper end of the perimeter member and an upper end of the interior channel wall are both substantially even with a bottle opening rim that circumscribes the bottleneck; and an air tube attached to the air inlet channel and having a distal end extending into the bottle and being configured such that at least a portion of the air tube is in fluid communication with the air inlet channel.