Galley Drain Strainer with Viewing Window and Backflow Valve
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Solution Overview
Problem
Existing wastewater plumbing systems in compact galley environments, such as those found in aircraft, trains, and ships, face challenges with clogs, backflow, and contamination due to limited space, making it difficult to determine clog locations and clean strainers without spilling fluids, and leading to unsanitary conditions.
Innovation Solution
A compact wastewater filtration system with a buoyant spherical device acting as a one-way valve, a removable panel for visual inspection and easy access, and an emergency drain port to prevent backflow and allow for de-clogging, while maintaining a reduced footprint.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a traditional drain strainer is used in a compact galley, then debris can be strained from waste fluids, but the system occupies excessive space and makes visual inspection difficult
Solution Approach 1:
The patent places a transparent or translucent window within the strainer assembly housing, allowing visual inspection of internal components and clog conditions without requiring disassembly. This nested viewing port enables monitoring while maintaining the compact footprint of the overall system.
Solution Approach 2:
The transparent window acts as an intermediary element that transmits visual information from the internal strainer components to the external observer. This mediator allows inspection of clog conditions and internal structure without physical access or disassembly, resolving the contradiction between compact size and inspectability.
2Area of stationary object
If a compact catch basin is used to minimize space, then space is saved, but waste fluid can easily overflow and contaminate countertops
Solution Approach 1:
The patent incorporates a backflow prevention mechanism that anticipates and counteracts waste fluid surge before it can overflow the basin. This preliminary protective action prevents contamination of countertops while maintaining the compact basin design.
Solution Approach 2:
The compact catch basin includes a overflow prevention feature that provides a buffer or cushioning capacity before waste fluid can escape the basin. This beforehand protection allows the basin to remain compact while still preventing contamination under surge conditions.
3Ease of repair
If a removable strainer is used to enable cleaning, then maintenance is possible, but removing the strainer causes messy fluid spillage
Solution Approach 1:
The patent extracts the strainer element from the housing as a separate, removable component that can be independently accessed and cleaned. This extraction allows maintenance without removing the entire assembly, enabling clean removal of just the strainer portion.
Solution Approach 2:
The strainer assembly is segmented into separable components - the strainer element itself and the housing. This segmentation allows the strainer to be removed and cleaned independently without causing fluid spillage, as the housing remains in place to contain any residual fluid.
4Strength
If the strainer housing is made opaque for durability, then strength is improved, but visual inspection of clogs becomes difficult
Solution Approach 1:
The patent applies different material properties to different parts of the housing - most of the housing maintains opaque, durable material for strength, while a specific local region (the window area) uses transparent or translucent material to enable visual inspection. This local quality differentiation resolves the contradiction between overall durability and localized visibility.
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 system effectively prevents backflow, allows for easy inspection and maintenance, and reduces the risk of contamination by providing a clear view of clogs and easy access, ensuring a sanitary and clog-free operation in compact galley spaces.
Implementation Method 1
a buoyant spherical device acting as a one-way valve
Data Source
Figure 1~3
Figure 4~5
AI summary
A apparatus and system for filtering wastewater from a basin is disclosed, wherein the apparatus prevents backflow of waste water, provides easy access for cleaning and replacing strainers, and a viewing window. The apparatus also provides additional ports for draining the apparatus. The apparatus comprises a filter assembly body (104), an access panel (102), an input connector (101), a strainer configured to be received in the cavity of the filter assembly body and configured to strain the liquid waste, and a main output connector (103).