dispensing container closure and dispensing container

摘要

CLOSURE FOR A DISPENSING CONTAINER, AND, DISPENSING CONTAINER. A closure comprising a valve, a base unit and an upper unit is disclosed. The base unit has a base surface with a peripheral skirt. The base surface has an opening with a cylindrical section extending above and below the base surface. The cylindrical section has a through opening. The upper unit has an upper surface and an opening adapted to align with the opening of the cylindrical section of said base unit. The upper unit has a cover to cover the openings in the cylindrical section of the base unit and the upper unit. The inner upper surface of the lid has two protruding seals, one for keeping the valve closed when the lid is closed and the other for providing a seal when the lid is closed, and a latch mechanism secures the base unit to the upper unit. A preferred latch mechanism comprises a projection and a locking recess, one being in the base section and the other in the upper section. The upper surface of the lid preferably has an essentially horizontal upper surface. In a preferred embodiment, the valve is a polymeric valve located in the opening between the base unit and the upper unit, and held in place by contact with both the base unit and the upper unit. The rheology of the product in the container and the valve characteristics are coordinated so that the product is completely contained by the valve regardless of container orientation, including reverse orientation.