Carlsberg has filed a patent for a container assembly that includes a collapsible beverage container with a cylindrical neck part and a closure. The closure has a pressure-relief device that allows for the release of pressure when it exceeds a certain value, preventing the container from bursting. The assembly is designed to accommodate beverages and provide a safe and efficient way to dispense them. GlobalData’s report on Carlsberg gives a 360-degree view of the company including its patenting strategy. Buy the report here.

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According to GlobalData’s company profile on Carlsberg, Pest resistant transgenic crops was a key innovation area identified from patents. Carlsberg's grant share as of September 2023 was 49%. Grant share is based on the ratio of number of grants to total number of patents.

Container assembly with pressure-relief closure for beverage container

Source: United States Patent and Trademark Office (USPTO). Credit: Carlsberg AS

A recently filed patent (Publication Number: US20230303312A1) describes a container assembly for holding beverages. The assembly includes a collapsible beverage container with a body part that can hold the beverage and a cylindrical neck part with an opening. The container also has a closure that seals off the opening and includes a closure disc, an inner cylindrical part, and an outer cylindrical part. The closure disc has a beverage outlet for dispensing the beverage.

One important feature of the container assembly is a pressure-relief device located at the closure disc or the inner cylindrical part. This device is designed to establish a permanent or reclosable opening through the closure or between the closure and the neck part when there is a pressure difference between the inner volume of the container and the external space that exceeds a predetermined pressure value. This predetermined pressure value is lower than the burst pressure of the container.

The patent also describes various embodiments of the pressure-relief device. For example, it can include a weakened part of the inner cylindrical part that deforms inwardly when the pressure difference exceeds the predetermined value, creating the opening. Alternatively, the device can be an elongated hollow protrusion with a breaking point that establishes a permanent opening when the pressure difference is too high. Other options include a burst plate in the closure disc, a flexible foil with a piercing mechanism, or a valve seat and valve body with a spring.

The patent also mentions a beverage dispensing system that includes the container assembly, a pressure chamber, a lid, a beverage tap, a keg connector, and a tapping line. Additionally, there is a method described for filling and handling the beverage container, as well as a closure specifically designed for the collapsible beverage container.

Overall, this patent presents a container assembly with a pressure-relief device that allows for safe dispensing of beverages by relieving excess pressure. The various embodiments of the device provide flexibility in design and functionality. The patent also includes a beverage dispensing system and a method for filling and handling the container.

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GlobalData, the leading provider of industry intelligence, provided the underlying data, research, and analysis used to produce this article.

GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies across the world’s largest industries.