Latch Reset Filter Unit Slide Assembly Mechanism
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Solution Overview
Problem
Water filtration systems often require excessive force to remove filter cartridges, making one-hand operation difficult due to high 'break out torque', which is challenging for users to manage without two hands.
Innovation Solution
A filter unit with a slide assembly and collar assembly that allows for two-hand operation by securing the slide assembly in a latched configuration, enabling easier removal of the filter cartridge and automatic resetting to prepare for replacement, utilizing a spring and latch mechanism for engagement and disengagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a secure engagement mechanism is used to retain the filter media, then the reliability of the filter retention is improved, but the ease of operation deteriorates due to high break out torque requiring two-hand operation
Solution Approach 1:
The patent applies a dynamic latching mechanism where the slide assembly can transition between locked and unlocked positions. The latch engages with the filter cartridge to provide secure retention during operation, but can be easily disengaged by sliding the assembly to release the filter, thus resolving the contradiction between secure retention and ease of removal
Solution Approach 2:
The slide assembly acts as an intermediary mechanism between the user and the filter cartridge. It provides a mechanical advantage through its sliding action, allowing easy one-handed operation to release the filter while maintaining strong engagement during normal use
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
Facilitates the removal of filter cartridges with reduced effort, allowing for safe and efficient handling without the need for excessive force, ensuring easy installation and replacement of filters.
Implementation Method 1
a spring biased to move the slide assembly to the first position
Implementation Method 2
the second position is maintained until an external force is applied
Data Source
AI summary
A filter unit that includes a slide assembly and a head assembly. The slide assembly is moveably mounted to the head assembly. The head assembly is configured to receive an end portion of a filter cartridge in releasable engagement. The slide assembly is movable between a first position in which the slide assembly prevents disengagement of the filter cartridge from the head assembly, and a second position in which the filter cartridge is permitted to disengage from the head assembly. In the second position, the slide assembly maintains engagement with the head assembly until an external force is applied by engagement of the filter cartridge with the slide assembly when removing the filter cartridge from the head assembly.