Fastening Ring for Pouch Anti-Collapse in Pressurized Bottles
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Solution Overview
Problem
In pressurized bottles, especially those with high flow valves, the existing methods for fastening pouches to prevent radial collapse and ensure product access are inefficient, leading to reduced restitution rates due to isolated areas and dead volumes, as they often require a gripping zone that may not be available on all extraction means.
Innovation Solution
A fastening ring with a tubular portion, flange, tenon, and pouch-fastening portion, which allows for secure attachment of anti-collapse means and pouches even without a gripping zone on the extraction means, featuring a flange for bottle-cup clamping, a tenon for anti-collapse means fastening, and fins or slots for enhanced access and product flow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If radial anti-collapse means are fastened directly to the valve, then the pouch can be prevented from collapsing radially, but the valve must have a gripping zone which is not available on all extraction means
Solution Approach 1:
The patent introduces a ring as an intermediary component between the extraction means and the pouch. The ring includes a tenon that can be fastened to various extraction means (serving as the intermediary), while the pouch is fastened to the ring's periphery. This mediator allows the system to function even when the extraction means lack a gripping zone, as the ring provides the necessary attachment points for both the extraction means and the pouch.
2Device complexity
If the pouch is fastened directly to the housing, then the valve structure is simplified, but the pouch cannot be securely fastened when the valve lacks a gripping zone
Solution Approach 1:
The patent segments the fastening system into distinct components: the ring with its tenon for attaching to the extraction means, and the pouch fastening portion attached to the ring's periphery. This segmentation allows the pouch to be securely fastened through the ring structure even when the valve itself lacks a gripping zone, while keeping the valve structure relatively simple.
3Reliability
If anti-collapse means are provided, then radial collapse is prevented, but dead volume remains due to the spring height when completely squashed
Solution Approach 1:
The patent transitions from radial anti-collapse means (springs) to longitudinal anti-collapse means (immersion tubes). The immersion tube extends vertically along the pouch, preventing collapse in the longitudinal dimension while allowing radial deformation. This dimensional shift eliminates the dead volume problem associated with squashed springs, as the tube can be compressed to minimal height while maintaining its anti-collapse function through its vertical orientation and structural design.
4Volume of moving object
If immersion tubes are used as longitudinal anti-collapse means, then dead volume is reduced, but access to the valve may be blocked if the pouch sticks against the tube
Solution Approach 1:
The patent applies local quality by providing openings or grooves at specific locations on the immersion tube. These localized features ensure that even if the pouch contacts the tube, product flow paths remain open through the openings, preventing complete blockage. The anti-collapse function is maintained where the tube contacts the pouch, while the openings preserve product access to the valve in critical areas.
Data Source
AI summary
A fastening ring (1) for fastening a pouch (2) in a container (4) made up of a bottle (42, 43) provided with an upper opening closeable by extraction means (3) optionally mounted on a cup (5), an upper tubular portion, preferably cylindrical, provided at its upper end with an outwardly projecting flange dimensioned to bear against the upper opening of a bottle and to be clamped between the upper opening of the bottle and the outer edge of extraction means or the outer edge of a cup (5) equipped with the extraction means (3) during packaging of the container, a tenon positioned in the extension of the upper tubular portion, on the side opposed to the flange, for fastening anti-collapse means (6) or an immersion tube, and a portion for fastening the pouch (2), which portion can be formed by the tubular portion.