Vacuum Bag Deodorizing Sheets That Preserve Air Permeability
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Solution Overview
Problem
Conventional cleaning appliances, such as vacuum cleaners and extraction devices, often accumulate odors from the substances they clean, leading to customer dissatisfaction and potential health risks, as existing solutions like cedar inserts and activated carbon have not conclusively solved the issue of lingering odors.
Innovation Solution
The use of a vacuum cleaner bag filter with a deodorizing sheet containing sodium bicarbonate particles, which are integrated into the filter walls or attached using an air impermeable adhesive, covering less than 30% of the surface area, to effectively neutralize odors by converting acidic or basic components into non-volatile salts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If cedar inserts or activated carbon are used in vacuum bags, then odors are controlled or masked to some extent, but lingering odors remain and the problem is not conclusively solved
Solution Approach 1:
The patent changes the chemical parameter of the deodorizing material from cedar or activated carbon to sodium bicarbonate (baking soda), which has different chemical properties that enable it to chemically neutralize odors rather than merely mask or adsorb them, thereby conclusively solving the lingering odor problem
Solution Approach 2:
The patent converts the harmful acidic or basic odor components into beneficial non-volatile salts through chemical neutralization by sodium bicarbonate, transforming the odor problem into a stable, non-offensive chemical state that eliminates lingering odors
2Object-affected harmful factors
If a deodorizing sheet is attached to the filter walls, then odor neutralization is achieved, but air permeability must be maintained
Solution Approach 1:
The patent applies local quality by attaching the deodorizing sheet to only a portion of the filter walls rather than covering the entire surface, thereby maintaining sufficient air permeable area while providing effective odor neutralization at the critical locations where odors are generated
Solution Approach 2:
The patent uses porous or permeable deodorizing sheet material that allows air to pass through while containing the sodium bicarbonate particles, thus maintaining air permeability while achieving odor neutralization function
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 sodium bicarbonate-based solution effectively reduces odors in cleaning appliances, enhancing user satisfaction and safety by providing a non-toxic and non-irritating means to neutralize odors, while maintaining air permeability and reducing manufacturing costs.
Implementation Method 1
The deodorizing sheet includes a first sheet layer, and a plurality of sodium bicarbonate particles operatively associated with the first sheet layer... effectively neutralize odors by converting acidic or basic components into non-volatile salts
Data Source
AI summary
A vacuum cleaner bag filter with one or more filter walls forming a generally air permeable enclosure having a bag opening through it, and a flange attached to the one or more filter walls to cover the bag opening. The filter walls have a working surface area through which air can pass during use, and the flange is a relatively rigid structure having an air inlet passing into the air permeable enclosure. One or more deodorizing sheets are attached to an inner surface of the one or more filter walls. The deodorizing sheets include a first sheet layer, and sodium bicarbonate particles operatively associated with the first sheet layer. The deodorizing sheets may cover less than about 30% of the working surface area, a single deodorizing sheet may be provided, and the deodorizing sheets may be attached to the filter walls by an air impermeable adhesive that covers at least about 5% of the surface area of the deodorizing sheets. Also provided is a vacuum cleaner filter having a filter and a deodorizing sheet attached thereto by an air-impermeable adhesive.