US 12,679,583 B2 · Method and filling station for filling a container comprising a pressurized additive chamber

Abstract

The invention relates to a method of filling a container (62) and to a pressurizing unit (60) comprising a first and a second pressurizing station (64,75). A transport member (61) transports the containers (62) along the pressurizing stations (64,75). An applicator (66) supplies a liquid pressurizing medium into the containers (62) at the first pressurizing station (64). A feeding unit (68) closes the containers with a cap (70). The cap has an additive chamber that is in fluid communication with the container interior via a valve. The applicator (77) at the second pressurizing station (75) supplies liquid pressuring medium to the additive chamber of the cap (70). A sealing station (80) seals the additive chamber such that the pressure 10 inside the additive chamber is lower than the pressure in the container. Upon opening of the cap by a consumer, the contents of the additive chamber are injected into the container.

Claims14

Dependent claims

A method of filling a container comprising:

Placing a pressurizing medium in a container having an outflow opening and containing a substance,
Closing off the outflow opening of the container with a closure member, either prior to or after placing the pressurizing medium in the container, the closure member comprising an additive chamber and a valve,
Placing the valve in fluid communication with the pressurized container in such a manner that the valve is in a closed position when contacted by the pressure in the container, characterized by
Placing an additive substance and a liquefied or solid gas pressurizing medium into the additive chamber of the closure member via an additive fill opening, allowing the liquefied or solid gas pressurizing medium to evaporate and build pressure in the additive chamber,
Sealing the additive fill opening by ultrasonic welding while the pressure is building up in the additive chamber such that there is a predetermined pressure in the additive chamber that is smaller than the pressure inside the container and larger than an atmospheric pressure, wherein the seal does not comprise a valve.

2 more elements

A method of filling a container comprising:

feeding a container holding a substance, to a pressurizing unit,
moving the container along a first pressurizing station having an applicator that places a pressurizing medium into the filled container,
feeding a cap to the filled container comprising a valve and an additive chamber,
closing the container with the cap either prior to or after placing the pressurizing medium in the container,
placing the valve in fluid communication with the pressurized container in such a manner that the valve is in a closed position by contact with the pressure in the container,
feeding the assembled container and cap along a second pressurizing station,
placing a liquid or solid pressurizing medium into the additive chamber via an additive fill opening such that a pressure in the additive chamber is lower than the pressure in the container,
allowing a predetermined time interval for the liquefied or solid pressurizing medium to evaporate and for excess pressurizing gas to escape from the additive chamber,
after a predetermined time interval, feeding the assembled container and cap along a sealing station, and
placing a pressure sealing member on the additive fill opening of the additive chamber of the cap, wherein the pressure sealing member does not comprise a valve, wherein the predetermined time interval is set such that the pressure in the additive chamber reaches a controlled value lower than the pressure in the container.

7 more elements

Dependencies are inferred from the claim text.

Method and filling station for filling a container comprising a pressurized additive chamber

Life of this patent

Method and filling station for filling a container comprising a pressurized additive chamber

Life of this patent

Abstract

Claims14