Baby bottle with recessed bottom for the removable receipt of a cold substance

A new and improved baby bottle with a recessed bottom for the removable receipt of a cold substance comprising, in combination:

• a baby bottle having a one piece main body portion with a side wall with concentric interior and exterior surfaces and having a cylindrical cross-sectional configuration over the majority of its extent, the main body portion having a closed lower end forming a base with a flat surface perpendicular to the axis of the side wall and with an open upper end of a reduced diameter, with screw threads formed exteriorly adjacent to the open upper end;
• a cylindrical extension formed within the interior of the bottle between the side walls from the central portion of the base, the extension extending for about fifty percent of the length of the bottle;
• screw threads formed in the exterior surface of the main body portion adjacent to the lower end thereof, the screw threads adjacent to the lower end being of a greater diameter than the screw threads adjacent to the upper end;
• a nipple with a hole at its upper end and a radially extending flange at its lower end;
• a nipple cap formed with a circular aperture for the passage therethrough of the nipple and a downwardly extending flange with internal threads to removably couple the nipple and cap to the upper end of the bottle during use;
• a cylindrical insert of a cold frozen material positionable within the recess, the insert being of a length essentially the same as that of the recess with a diameter slightly less than the interior diameter of the recess;
• and
• a separate imperforate cap with a planar central circular portion and an upstanding peripheral wall with internal threads adapted to mate with the external threads at the lower end of the main body portion to preclude inadvertent removal of the insert material from the recess and to present a smooth continuous closed lower surface for the safety of a baby handling the baby bottle.