Waterproof Case Gasket Design for Seal Integrity
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Solution Overview
Problem
Current waterproof mobile device cases are cumbersome, difficult to use, and lack drop protection, with waterproof integrity compromised upon impact due to dynamic deformation affecting seal integrity.
Innovation Solution
A protective mobile device case design featuring a base with mating elements, a screen protector with gaskets, and a cover that securely engages to maintain a waterproof seal while allowing access, using resilient materials like TPU and polycarbonate for impact protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple latches and plugs are used to ensure waterproof integrity, then waterproof reliability is improved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The patent combines multiple sealing functions into a single integrated gasket that runs continuously around the perimeter of the case. This gasket integrates the sealing functions that would otherwise require multiple separate plugs and latches, thereby maintaining waterproof integrity while reducing structural complexity and improving ease of operation.
Solution Approach 2:
The single continuous gasket serves multiple sealing functions simultaneously - it seals the front opening, side openings, and rear opening of the case. This multi-functional approach replaces the need for multiple specialized plugs and latches, achieving the same waterproof reliability with simpler construction.
2Reliability
If multiple latches and plugs are used to ensure waterproof integrity, then waterproof reliability is improved, but ease of operation deteriorates
Solution Approach 1:
By merging multiple sealing components into a single integrated gasket system, the patent reduces the number of assembly steps. Users no longer need to manually install multiple separate plugs and engage multiple latches - instead, they simply attach the front cover with the integrated gasket, which automatically provides sealing across all openings.
Solution Approach 2:
The universal gasket design that seals all openings simultaneously eliminates the need for multiple separate operations. A single attachment action engages the gasket across the front, sides, and rear of the case, making the case easy to assemble and disassemble while maintaining waterproof integrity.
3Strength
If rigid materials are used for case structure, then drop protection is improved, but waterproof seal integrity deteriorates due to dynamic deformation
Solution Approach 1:
The patent changes the material parameter of the gasket from rigid to elastic/resilient. This elastic material can dynamically deform during impact events to absorb shock and then return to its original shape, maintaining the waterproof seal integrity even during and after drops. The resilient nature of the gasket material allows it to accommodate dynamic deformation without compromising sealing.
Solution Approach 2:
The case employs a composite construction combining rigid case materials for structural strength and drop protection with an elastic gasket material for sealing. This composite approach allows the rigid case to provide impact resistance while the elastic gasket maintains seal integrity by flexing during dynamic events like drops.
4Volume of moving object
If the case is made compact and sleek, then portability is improved, but access to screen protector deteriorates
Solution Approach 1:
The patent implements a nested design where the screen protector is integrated within the front cover structure itself. The screen protector is positioned in a recess or groove in the front cover, allowing it to be accessed and replaced without removing the entire case or disassembling components. This nested arrangement maintains compact case dimensions while providing easy screen protector access.
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 case provides both waterproof and drop protection by maintaining seal integrity during and after impacts through the engagement of mating elements and gaskets, ensuring the device remains protected and functional.
Implementation Method 1
A level of compression of the gasket between the at least the portion of the inside surface of the perimeter of the interior and the at least the portion of the outside surface of the rib is based on the extent of engagement between the at least one of the number of second mating elements and the corresponding at least one of the number of first mating elements
Implementation Method 2
The case includes a cover that is releasably engageable with the base and is configured to releasably restrain the screen protector when engaged with the base. The cover defines an opening through which at least a portion of the screen protector is accessible
Data Source
AI summary
A case for a mobile communication device includes a base that defines an interior and a first surface and is configured to receive at least a portion of the mobile communication device in the interior. A screen protector is configured to releasably engage the base and defines a first surface of the screen protector. The screen protector is configured to retain a gasket, which is releasably engageable to the screen protector, between the first surface of the base and the first surface of the screen protector. A cover is provided that is releasably engageable with the base and is configured to releasably restrain the screen protector when engaged with the base. The cover defines an opening through which at least a portion of the screen protector is accessible.