Filter Receptacle Interlock Mechanism for Cartridge Verification
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Solution Overview
Problem
Existing filtration systems often fail to ensure proper installation of a new filter cartridge after removing the old one, leading to potential equipment malfunctions due to the lack of an effective interlock mechanism.
Innovation Solution
A filter receptacle assembly with interlock devices that are biased into a first position, protruding to prevent installation unless a filter cartridge is properly inserted, shifting to a second position when the cartridge is present, allowing secure mounting onto the filter head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no interlock mechanism is provided, then the filter receptacle can be freely installed and removed, but there is no guarantee that a filter cartridge is properly installed
Solution Approach 1:
The interlock device acts as an intermediary mechanism between the filter cartridge and the filter receptacle assembly. It includes an actuator that moves between a first position (when cartridge is installed) and a second position (when cartridge is removed), mediating the connection between the cartridge installation state and the receptacle's ability to attach to the filter head
Solution Approach 2:
The interlock device prevents the filter receptacle from being installed on the filter head when the filter cartridge is not properly in place. The actuator in the second position creates a mechanical interference that blocks the installation process, providing preliminary prevention against improper operation
2Reliability
If an interlock device is added to prevent empty receptacle installation, then filter cartridge presence is ensured, but the device structure becomes more complex
Solution Approach 1:
The interlock device serves as a mediating mechanism that translates the presence or absence of the filter cartridge into a mechanical state (actuator position) that either permits or prevents receptacle installation. This intermediary function ensures reliability without requiring complex control systems
Solution Approach 2:
The interlock device automatically detects the filter cartridge installation state through the actuator's interaction with the cartridge and self-regulates the receptacle's installability. The system serves itself by using the cartridge's presence to directly control the interlock state without external monitoring or control systems
Data Source
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AI summary
A filter receptacle assembly is described including a filter receptacle having a receptacle wall and a circular edge defining an opening for receiving a filter cartridge and a first interlock device coupled to the receptacle wall of the filter receptacle, wherein the first interlock device comprises a first actuator moveable between a first position and a second position and biased into the first position, wherein at least a portion of the first actuator protrudes from the receptacle wall in the first position, wherein the first interlock device is configured so that when a filter cartridge is inserted into the filter receptacle, the first actuator is moved by the filter cartridge from the first position to the second position and is held in the second position by the filter cartridge.