Snap-On Rim Filter Cartridge for Narrow-Vessel Sealing
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Solution Overview
Problem
Suction filter cartridges with asymmetrical housings cannot be easily inserted into narrow water vessels, and additional securing elements are often misaligned, leading to a lack of a reliable seal at the outlet opening.
Innovation Solution
A filter cartridge with a snap-on rim that can be turned from a lower to an upper position, secured by a connecting sleeve with an actuator, ensuring a sealing and clamping mechanism without additional fixing elements, and an adjustable bypass to control water flow based on quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the suction filter cartridge is screwed onto the seat element, then the filter cartridge is securely fastened, but suction filter cartridges with asymmetrical housing cannot be screwed into narrow water vessels and tools are necessary
Solution Approach 1:
Instead of screwing the cartridge onto the seat element, the invention inverts the connection approach by providing a connecting sleeve on the seat element that receives and secures the cartridge from the water vessel side, eliminating the need for threading operations on narrow cartridges
Solution Approach 2:
The connecting sleeve acts as an intermediary component between the seat element and the filter cartridge, providing a secure mechanical connection without requiring the cartridge itself to have threading features, thus solving the asymmetry problem
2Reliability
If additional securing elements are provided to prevent floating, then the filter cartridge is held in position, but these elements are frequently not arranged correctly leading to lack of reliable seal
Solution Approach 1:
The invention merges the sealing function and the securing function into a single integrated connecting sleeve structure. The sealing element is incorporated within the connecting sleeve, ensuring that sealing and positioning are achieved simultaneously through one component rather than multiple separate elements that could be misaligned
Solution Approach 2:
The connecting sleeve serves multiple functions simultaneously: it provides mechanical support, ensures proper positioning, creates the sealing interface, and prevents floating. This multi-functionality eliminates the need for separate securing elements that would require precise alignment
3Reliability
If the snap-on rim is turned from lower to upper position, then the filter cartridge is securely clamped and sealed, but the mechanism requires actuator movement
Solution Approach 1:
The snap-on rim is designed as a movable element that can be actuated from a lower to an upper position. This dynamic component allows the system to transition from an unsecured state to a securely clamped and sealed state, providing reliable sealing through a simple positional change rather than a complex mechanism
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 easy insertion and reliable sealing of the filter cartridge, preventing floating and allowing for adjustable filtration performance based on water quality, extending the cartridge's lifespan and maintaining optimal aroma and machine protection.
Implementation Method 1
a snap-on rim (22) is provided in the outlet opening (20), pointing inwardly, which can be turned down from a first lower snap position into an upper second snap position and vice versa
Data Source
AI summary
The invention relates to a filter cartridge (1), especially a suction filter cartridge, which is provided, in the outlet opening (20), with an inward-pointing, peripheral snap-on rim (22) which can be folded from a first lower snap position into a second upper snap position and vice versa. The invention also relates to a seat element (30) for such a filter cartridge, comprising a connection sleeve (33) which engages with the outlet opening (20) of the filter cartridge (1). Said connecting sleeve (33) comprises at least one actuator which displaces, when the filter cartridge (1) is placed on the rim, the snap-on rim from a first lower snap position to the second upper snap-on rim from a first lower snap position to the second upper snap positioning which the snap-on rim rests against the connecting sleeve (33) in a sealing and clamping manner.