Gravity-Fed Water Bottle with Bidirectional Filtration
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Solution Overview
Problem
Existing reusable water bottles are inconvenient, complicated, and only filter water as it exits the bottle, requiring users to manually force water through the filter, and existing gravity-fed filtration systems are not portable and take too long to filter water.
Innovation Solution
A portable, reusable water bottle with a cylindrical filter housing containing filtration media that allows for bidirectional flow and rapid gravity filtration, integrating a reservoir and cap to facilitate easy filling and drinking, using a combination of filtration media such as activated carbon and antimicrobial agents to reduce contaminants according to NSF/ANSI standards.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If existing reusable gravity-fed filtration systems are used, then filtered water is provided for consumers, but filtration time is lengthy and portability is lost
Solution Approach 1:
The filter housing is designed to be removable and replaceable, allowing the filtration system to transition between stationary and portable states. This dynamic configuration enables the same filtration technology to achieve both high-speed filtration when stationary and portability when needed, resolving the contradiction between filtration speed and portability.
Solution Approach 2:
The filtration system is divided into separate components: a reusable bottle and a replaceable filter housing. This segmentation allows the filter housing to be optimized for rapid filtration when attached, while the bottle provides portability. The modular design enables quick attachment and detachment, minimizing time loss during transitions.
2Ease of operation
If existing reusable water bottles with exit filtration are used, then water filtering is provided, but operation is inconvenient and manual forcing is required
Solution Approach 1:
Instead of filtering water as it exits the bottle through a complex valve system, this invention filters water as it enters the bottle through a simple gravity-fed mechanism. This inversion simplifies the operation to merely pouring water into the bottle, eliminating the need for manual forcing or complex exit filtration mechanisms.
Solution Approach 2:
The filtration system uses gravity as the driving force, eliminating the need for manual pumping or forcing. Water naturally flows through the filtration media in the housing and into the bottle, making the system self-operating and extremely convenient to use.
3Productivity
If rapid gravity flow filtration is implemented, then filtration speed is improved, but filter clogging may occur
Solution Approach 1:
The filtration system uses multiple types of filtration media with different pore sizes and filtration characteristics arranged in layers. Coarser media are positioned to handle initial filtration and prevent clogging, while finer media provide comprehensive filtration. This local differentiation of filtration quality across different zones maintains rapid flow while preventing clogging.
Solution Approach 2:
The filter housing contains a composite structure of multiple filtration media including activated carbon, ion exchange resin, and mechanical filtration layers. This composite material approach combines the advantages of different media types to achieve both high flow rates and clogging resistance through synergistic filtration mechanisms.
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
Enables efficient, portable, and rapid filtration of water as it enters the bottle, providing filtered water for immediate consumption while reducing contaminants, improving convenience and reducing environmental impact by eliminating the need for bottled water.
Implementation Method 1
a water-permeable screen or mesh or felt or membrane or netting layer at the top and bottom ends of the filter enabling gravity flow of water through the filter
Implementation Method 2
the filter comprises one or more of the following media: adsorbent media, granular activated carbon, KDF-55, KDF-85, brass filings, CuZn, ion exchange media, ion exchange resin, zeolites, activated alumina
Implementation Method 3
ion exchange media, ion exchange resin
Implementation Method 4
absorbent media
Implementation Method 5
oxidation media
Data Source
AI summary
A portable, personal apparatus for treating drinking water comprises a generally tubular or cylindrical filter housing containing filtration media and water-permeable screen or mesh or felt or membrane or netting layer at the top and bottom ends of the filter. The design of the apparatus involves the bottle exterior and interior contouring to the filter and enables the efficient and rapid gravity flow of water in through the filter. The apparatus may be configured such that water is first passed through a top reservoir designed to receive water, followed by a porous mesh, followed by granular filtration and antimicrobial media agitated by turbulent motion of influent water, followed by a porous mesh before reaching a durable and reusable water containment vessel.