초록 ▼

A dispensing container comprising a wall, a base, and a top is used in an inverted condition and is closed, but for an outlet in the top from which liquid can be dispensed and an inlet to allow only sufficient air to bleed into the container to make up for liquid dispensed from the container so that

A dispensing container comprising a wall, a base, and a top is used in an inverted condition and is closed, but for an outlet in the top from which liquid can be dispensed and an inlet to allow only sufficient air to bleed into the container to make up for liquid dispensed from the container so that the liquid will be dispensed from the container under constant head. In one arrangement, the inlet comprises a tube extending from the bottom to close to the top of the container with a one-way valve arrangement close to the bottom of the container to permit venting of the head space through the one-way valve arrangement in the event of a pressure build-up in the head space. In an alternative arrangement, the inlet comprises a tube extending from the top of the container to close to the bottom of the container and a valve closing flow of air through the tube, the tube permitting a flow of air to make up for material dispensed.

대표청구항 ▼

A package for the dispensing of liquid comprising a wall, a base and a top, the package being adapted for use in inverted condition and being closed but for an outlet in the top from which the liquid can flow under gravity and an inlet through which air can bleed to compensate for liquid which flows

A package for the dispensing of liquid comprising a wall, a base and a top, the package being adapted for use in inverted condition and being closed but for an outlet in the top from which the liquid can flow under gravity and an inlet through which air can bleed to compensate for liquid which flows from the package, said inlet comprising a bleed tube extending from the base of the container to a position close to the top of the container, said bleed tube open to the atmosphere at the base of said container and open to the inside of the container near the top thereof and the tube having a one-way valve arrangement in the wall thereof adjacent the base of the container, said one-way valve arrangement permitting passage of air only in a direction from inside said container, through said valve to the inside of said tube, so that, in use, air in the head space in the container can be vented through the one-way valve arrangement in the event that the temperature of the air in said head space increases, but flow of air into said head space other than by bleeding through the vent tube is prevented so that dispensing of the liquid from the container will always be under a constant head.