Rotatable Filter Ventilation Orifice for Single-State VPD Control
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Solution Overview
Problem
Consumer confusion arises from the existing variable pressure drop (VPD) cigarettes due to a second maximum state, necessitating a simplified adjustment mechanism between a single maximum and minimum flavor state.
Innovation Solution
A smoking article with a filter component featuring rotatable segments and a wrapping material system that forms a ventilation orifice upon initial twist, allowing control of smoke intensity between a single maximum and minimum flavor state, accompanied by a strength indicator for user guidance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a filter component is designed with two maximum states (as in prior art VPD cigarettes), then the filter provides adjustable ventilation between minimum and maximum states, but consumer confusion arises due to uncertainty about how to use the cigarette
Solution Approach 1:
The patent removes one of the two maximum states from the filter component design, extracting the source of consumer confusion. By providing only a single maximum ventilation state and a single minimum ventilation state, the filter eliminates the ambiguous second maximum state that caused user uncertainty, while preserving the essential adjustable ventilation functionality between the remaining two states.
2Ease of manufacture
If the ventilation orifice is formed at the neutral position between two extremes, then the manufacturing process is simpler, but the filter component cannot provide a single clear maximum state
Solution Approach 1:
The patent applies preliminary action by pre-rotating the filter component to a defined extreme position (beyond the neutral position) before forming the ventilation orifice. This preliminary rotation ensures that when the orifice is created, the filter is already positioned to provide a clear single maximum ventilation state, rather than a neutral position that would allow ambiguous interpretation of maximum states.
3Ease of operation
If the filter component is rotated beyond the neutral position to a single extreme, then a clear single maximum state is achieved, but the manufacturing process requires additional steps
Solution Approach 1:
The manufacturing process incorporates preliminary rotation of the filter component to the extreme position before orifice formation. This preliminary action, while adding a step, streamlines the overall process by eliminating the need for complex mechanisms to define and control the single maximum state, thereby achieving user clarity with minimal additional manufacturing complexity.
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 provides a more intuitive and user-friendly VPD cigarette with controlled smoke intensity, enhancing user experience while maintaining minimal additional manufacturing costs.
Implementation Method 1
providing a mechanism by varying the pressure drop across the filter
Implementation Method 2
providing maximum ventilation at the first extreme position and minimum ventilation at the second extreme position
Data Source
Figure 1~3
Figure 4~5
AI summary
A method for manufacturing a smoking article is provided comprising providing a filter component comprising first and second sections that are rotatable relative to one another between two extreme positions. A first section of wrapping material covers the first segment and partially covers the second segment within an overlap region. A second section of wrapping material covers the remainder of the second segment. The first and second sections are adhered to the first and second segments respectively. The first section is not adhered to the plug at the overlap region however. The first section and the filter material are perforated at the overlap region, when the first segment is rotated to the first extreme position so as to form a ventilation orifice configured to provide maximum ventilation at the first extreme position and minimum ventilation at the second extreme position.