Patent ID: 8727147
Filing Date: 2014-05-20
Classification: A61J

Abstract:
1. A bottle assembly having a bottom vent, the assembly comprising: a bottle defining a liquid chamber for holding a quantity of liquid, the bottle having an open bottom, an open top, and a sidewall extending between the open bottom and the open top, the sidewall having a top portion, a base portion, and middle portion extending between the top and base portions; a top closure member adapted for releasable engagement with the top portion of the bottle for closing the open top of the bottle, the top closure member having an opening for allowing liquid held in the liquid chamber to exit the bottle assembly; a bottom closure member adapted for releasable engagement with the base portion of the bottle for closing the open bottom of the bottle; the bottom closure member having a base panel with at least one aperture therein; and a diaphragm positionable between the bottom closure member and the base portion of the bottle, the diaphragm having at least one sealing element for sealingly engaging the base panel of the bottom closure member and an air passage extending through the at least one sealing element, the diaphragm being exposed to the liquid when liquid is held in the liquid chamber, the diaphragm being moveable between a sealed position wherein the at least one sealing element is sealingly engaged with base panel of the bottom closure member and an unsealed position wherein the at least one sealing element is at least partially disengaged from the base panel of the bottom closure member for allowing air to pass through the air passage of the diaphragm and into the liquid chamber of the bottle, the diaphragm being bowed upward proximate the at least one sealing element for biasing the at least one sealing element against the base panel when in the sealed position, the air passage being configured to inhibit liquid contained within the liquid chamber of the bottle from entering the air passage when the diaphragm is in its sealed position by trapping air within the air passage.