Baby bottle with ribs on inner surface of nipple

Abstract

Embodiments relate to a baby bottle having a nipple with enhanced resilience against flexing of its body during bottle-feeding use. The nipple has ribs extending in a slanted direction on its inner surface to enhance its elastic recovery elongation or contraction during a bottle-feeding cycle. Some of the ribs may extend into an elongated tip of the nipple to enhance the recovery of the elongated tip from its collapse or compression. The ribs enable the nipple to remain thin while providing sufficient elasticity so that the nipple has a desirable tactile feel while supporting a natural bottle-feeding action. Embodiments also relate to a container of the baby bottle having a rigid cylinder and a resilient body secured to the rigid cylinder. The rigid cylinder has a structure to secure the resilient body formed onto the rigid cylinder by an injection molding process.