Wet/Dry Vacuum Filter Bag Mounting via Drum Drain Adapter
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Solution Overview
Problem
Wet/dry vacuum cleaners lack a practical method to mount a paper filter bag due to the integrated vacuum inlet in the lid, making it impractical to install and remove a full bag without rupturing it under the weight of debris.
Innovation Solution
An adapter system that mounts a filter bag to the drain opening of the vacuum cleaner drum, redirecting vacuumed materials through the drain opening and into the bag, allowing the lid to be removed independently without disturbing the bag, and providing support at the bottom of the drum.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the vacuum inlet is integrated into the lid, then the vacuum cleaner can function as a wet/dry vacuum, but it becomes impractical to install and remove a paper filter bag without rupturing it due to the suspended weight of debris
Solution Approach 1:
The vacuum cleaner is divided into functionally independent components: the lid assembly (containing the vacuum inlet and motor) can be removed separately from the drum assembly (containing the filter bag). This segmentation allows the filter bag to remain mounted on the drum while the lid is removed for emptying, eliminating the risk of bag rupture during lid removal.
Solution Approach 2:
The patent introduces an intermediary mounting structure (adapter or mounting plate) that couples the filter bag to the drum assembly rather than directly to the lid. This intermediary connection allows independent removal of the lid while maintaining secure attachment of the filter bag to the drum, resolving the contradiction between wet/dry functionality and ease of bag operation.
2Manufacturing precision
If a paper filter bag is installed on the vacuum inlet in the lid, then fine debris can be collected, but the bag will rupture when the lid is removed due to the weight of collected debris
Solution Approach 1:
By separating the lid assembly from the drum assembly, the filter bag remains supported by the drum structure during operation. When the lid is removed for emptying, the bag stays attached to the drum and maintains its structural integrity, preventing rupture that would occur if the bag were attached to the removable lid.
Solution Approach 2:
The mounting structure is designed to distribute and support the weight of collected debris before removal operations. The adapter or mounting plate provides structural reinforcement that prevents the bag from rupturing under the suspended weight of debris during normal operation and removal cycles.
3Quantity of substance
If the filter bag is mounted to the lid, then filtration can occur, but the lid and filter bag must be removed together making it difficult to empty the drum without disturbing the bag
Solution Approach 1:
The vacuum cleaner system is segmented into independently removable components: the lid assembly can be removed from the drum assembly. The filter bag is mounted to the drum assembly rather than the lid, allowing the lid to be removed for drum emptying while the filter bag remains in place on the drum, simplifying the emptying operation.
Data Source
AI summary
The present disclosure provides a method, apparatus, and system to mount a filter bag to a wet/dry vacuum cleaner by providing an adapter for mounting the filter bag to a drain opening in the wet/dry vacuum cleaner drum and restricting the typical vacuum port, forcing the vacuum materials to enter through the drain opening and into the bag. The lid of the wet/dry vacuum cleaner can be removed independently of the bag to avoid rupturing the bag. Further, the bag can rest on the bottom of the drum for support.