Removable Mattress Cover Assembly With Zippered Protective Layers
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Solution Overview
Problem
Existing mattress cover assemblies are difficult to remove and replace when stained or damaged, and the additional protection provided by fitted sheets is often insufficient, as they can slip off and fail to protect the underlying mattress.
Innovation Solution
A cover assembly comprising a first cover with a zipper for securing around the mattress and a second cover with a two-way separating zipper that easily attaches and detaches, providing enhanced protection and comfort through breathable, durable textiles and optional features like flexible foam layers and phase change materials, while minimizing damage risk.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fitted sheet is used to cover the mattress cover, then comfort is improved, but protection reliability deteriorates because the fitted sheet can slip off and fail to protect the underlying mattress
Solution Approach 1:
The patent implements a nested structure where the comfort layer (second cover with soft materials) is placed inside the protective layer (first cover with durable materials). The second cover is inserted through the opening of the first cover, creating a nested configuration where both layers work together - the inner layer provides comfort while the outer layer provides reliable protection that cannot slip off independently
Solution Approach 2:
The patent merges the protective function and comfort function into a single integrated cover assembly. The first cover and second cover are combined through the zipper connection and elastic edge attachment, creating a unified structure where the comfort layer and protective layer work together as one system, eliminating the problem of separate layers slipping off
2Reliability
If a protective mattress cover is used to prevent stains and damage, then protection is improved, but ease of maintenance deteriorates because the cover is difficult to remove and replace
Solution Approach 1:
The patent divides the cover system into two separable segments: the first cover (protective layer) and the second cover (comfort layer). The second cover can be independently removed through the opening of the first cover, allowing easy maintenance of the comfort layer without affecting the protective layer. This segmentation enables selective replacement and cleaning of different components
Solution Approach 2:
The patent extracts the comfort function into a separate removable second cover that can be taken out independently from the first cover. The opening in the first cover and the elastic edge allow the second cover to be extracted and replaced easily, while the first cover remains in place to continue providing protection to the mattress
3Device complexity
If a single cover assembly is used to provide both protection and comfort, then device complexity is reduced, but functional performance deteriorates because it cannot simultaneously provide durable protection and comfortable contact
Solution Approach 1:
The patent applies local quality by using different materials with different properties in different locations/layers. The first cover uses durable, protective materials (canvas, denim, vinyl, leather) for the outer surface that contacts the mattress, while the second cover uses soft, comfortable materials (suede, microfiber, velvet, silk) for the inner surface that contacts the user. Each layer is optimized for its specific function
Data Source
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AI summary
A cover assembly for a mattress is provided that includes a first cover and a second cover. The first cover includes a top panel a bottom panel, and a continuous side pane! collectively defining a cavity for enclosing the mattress. The second cover includes a top surface and a bottom surface, with the second cover being positioned over and dimensionaliy-sized to cover at least (he top panel of the first cover. A fastener then connects the second cover to the firs t cover along the perimeter of the second cover. Methods for marking a mattress are also provided that include the step of marking an indicia indicative of a characteristic of a mattress on the top surface of the second cover of the cover assembly.