Face-Conforming Mask Shell with Elastic Sealing Force
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Solution Overview
Problem
Many masks are uncomfortable to wear, difficult to fit properly, and often result in inadequate protection due to improper sealing, which can allow particulates to pass through and cause fogging of glasses, especially when accommodating varied facial characteristics and facial hair.
Innovation Solution
A mask apparatus featuring a shell that conforms to the user's face, with a securing portion and elastic materials to apply a consistent sealing force, ensuring the filter fits snugly around the nose and mouth, and additional components for alignment and adjustment to accommodate different facial features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a general size and shape mask is used, then manufacturing cost is reduced and ease of manufacture is improved, but fit to individual faces deteriorates and sealing effectiveness worsens
Solution Approach 1:
The mask is divided into a reusable shell portion and a replaceable filter portion. The shell is manufactured in limited sizes to ensure fit, while the filter can be independently replaced. This segmentation allows the shell to be optimized for adaptability while maintaining manufacturing efficiency through standardization of components.
Solution Approach 2:
The mask incorporates adjustable components including flexible ear loops with adjustable length, adjustable nose pieces that can be shaped to different facial contours, and flexible sealing materials that adapt to various facial shapes. These dynamic elements allow a single shell design to accommodate multiple face geometries while maintaining effective sealing.
2Device complexity
If a general size and shape mask is used, then device complexity is reduced, but sealing effectiveness deteriorates due to improper conformance to facial features
Solution Approach 1:
Different portions of the mask have specialized properties optimized for their specific functions: the shell provides structural support and shape retention, the filter portion contains the filtration media with specific pore structures, and the sealing portions use flexible materials that conform to facial contours. This local optimization of material properties and structural characteristics enables effective sealing without requiring complex overall design.
Solution Approach 2:
The mask incorporates flexible sealing materials and thin film components that can conform to various facial shapes and contours. The shell itself is designed with flexible portions that can adapt to different face geometries while maintaining structural integrity. This flexibility ensures reliable sealing across diverse user populations without increasing device complexity.
3Ease of manufacture
If disposable masks are used, then ease of manufacture and cost are improved, but comfort and proper fit deteriorate due to inability to accommodate facial hair and varied facial characteristics
Solution Approach 1:
The mask design separates the disposable filter portion from the reusable shell. The filter, which contacts the face and may be contaminated, is designed for easy removal and replacement. The shell, which provides the structural framework and sealing surfaces, is recovered and reused. This approach maintains the cost benefits of disposable components while enabling long-term comfort through a durable, well-fitted shell.
Solution Approach 2:
The shell is pre-formed with ergonomic contours and adjustable features (such as pre-configured ear loops and nose piece shapes) that are optimized for comfort before the user receives it. The filter is pre-packaged and ready for immediate insertion, eliminating the need for users to perform complex assembly or adjustment procedures that would compromise comfort.
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 improved sealing and comfort by ensuring a proper fit of the mask, reducing leakage and fogging, while allowing for easy replacement of filters and accommodating various facial types, enhancing safety and convenience.
Implementation Method 1
a second elastic material portion that is connected to the first material portion and operates with the first material portion to apply a sealing force to the filter in a direction toward the user's face
Data Source
AI summary
Aspects of various embodiments herein may be implemented as follows. An apparatus has a material shell that conforms to a user's face, and a securing portion connected to the shell that may operate to secure a filter to the user's face with the filter covering the user's nose and mouth. A securing force may be applied to the filter via the first material portion in a direction toward the user's face, thereby sealing the filter around the user's nose and mouth. Various implementations involve elastic and other material that facilitate sealing of the filter around the user's nose and mouth.