Bottle assembly vent insert with siphoning member

A feeding assembly having a longitudinal axis, comprising:

• a container having an open top and defining a liquid chamber therein for holding a liquid;
• a collar assembly defining a closure for the open top of the container upon assembly with the container, the collar assembly comprising a collar releasably securable to the container and a nipple coupled to the collar and having an opening through which liquid exits the feeding assembly during feeding;
• and
• a vent assembly positionable at least in part on the open top of the container and configured to facilitate venting of the container to atmosphere as liquid exits the feeding assembly during feeding, the vent assembly being disposed intermediate the container and the nipple and having at least one opening through which liquid is able to flow from the container to the nipple during feeding, the vent assembly having a siphon member extending along the longitudinal axis and generally away from the nipple and configured to facilitate the flow of liquid from the nipple back into the container when feeding is ceased and the container is oriented generally upright, wherein the siphon member is generally triangular in shape, tapering inward as it extends longitudinally away from the nipple.

A vent insert for use with a feeding assembly, the vent insert comprising:

• an inner portion comprising a transversely extending top wall and an annular sidewall depending longitudinally from the top wall;
• an outer portion comprising a transversely extending annular flange wall and an annular sidewall depending from the annular flange wall in a radially spaced relationship with the annular sidewall of the inner portion, the annular flange wall including an inner edge, an outer edge, a top surface, and a bottom surface;
• a gap defined by the radially spaced relationship between the annular sidewall of the outer portion and the annular sidewall of the inner portion;
• and
• a siphon member comprising a longitudinally extending elongate wall that spans the gap between the annular sidewall of the outer portion and the annular sidewall of the inner portion, the elongate wall extending to a position below a lower extent of the annular sidewall of the inner portion.