Bottle Cap Air Conduit for Anti-Glug Pouring
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Solution Overview
Problem
Narrow-necked containers experience glugging when pouring viscous liquids due to the lack of effective anti-glug features, particularly in designs with closely spaced openings, which can lead to irregular flow and splashing.
Innovation Solution
A bottle and cap combination featuring an elongate neck with a hollow handle acting as an air conduit, allowing air to enter through a semi-annular opening adjacent to the handle, minimizing liquid blockage and glugging by positioning the air inlet near the neck opening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a narrow-necked container is used for convenient handling and pouring, then ease of operation is improved, but glugging occurs during rapid pouring of viscous liquids
Solution Approach 1:
The container opening is segmented into two separate openings: a primary pour spout opening for liquid dispensing and a secondary air intake opening for air entry. This segmentation allows independent optimization of each opening's function, enabling the pour spout to remain narrow for easy handling while the air intake opening provides sufficient air flow path to prevent glugging during rapid pouring of viscous liquids
Solution Approach 2:
The secondary air intake opening acts as an intermediary element that mediates between the narrow pour spout and the atmosphere. It provides a dedicated air entry path that prevents the formation of vacuum conditions during pouring, thereby eliminating glugging without requiring modification to the narrow neck design
2Object-generated harmful factors
If dual openings are provided for anti-glug function, then glugging is prevented, but device complexity increases due to multiple closures to manipulate
Solution Approach 1:
Both the primary pour spout opening and the secondary air intake opening are integrated into a single cap structure. This merging allows both openings to be opened or closed simultaneously by a single user action, eliminating the complexity of manipulating multiple separate closures while maintaining the anti-glug functionality of having two distinct openings
3Device complexity
If closely spaced dual openings are provided in a narrow cap, then device complexity is reduced, but anti-glug effectiveness is insufficient
Solution Approach 1:
The cap is designed with differentiated local qualities: the primary pour spout opening has a specific size and shape optimized for liquid flow control, while the secondary air intake opening has a different size and shape optimized for air entry. This local differentiation ensures that each opening performs its specific function effectively, with the air intake opening positioned and sized to provide sufficient air flow path even in a narrow cap configuration
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution effectively prevents or minimizes glugging during pouring of viscous liquids by ensuring a steady air flow, maintaining a clear air passage and reducing liquid entry into the handle, thus promoting smooth and splash-free pouring.
Implementation Method 1
The hollow interior of the handle forms an air conduit which communicates at its upper and lower end with the interior of the body, to permit a flow of air through the neck opening, via the interior of the handle, to a lower region of the interior of the container
Data Source
AI summary
A combination of bottle and cap for dispensing a liquid. The bottle includes a narrow neck and a hollow handle. The hollow interior of the handle communicates at its upper and lower end with the interior of the body, to permit a flow of air through the neck opening, via the interior of the handle, to a lower region within the interior of the container so as to minimize glugging during pouring. The cap comprises a cap body attachable to the neck of the bottle. The cap includes on its crown first and second openings, for dispensing liquid and intake of air, respectively. The cap is configured to attach to the container body so as to position the second opening generally facing the handle, while the first opening is opposed to the handle. During pouring, air flows into the second opening within the cap as liquid exits the first opening, with the inflowing air being channeled into the hollow handle interior with minimal interference with the outflowing liquid so as to introduce air into the interior of the body to displace the liquid being poured from the bottle.