Wet/dry vacuum tools with simplified containment tools and cooperating tool sets

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Solution Overview

Problem

Existing wet/dry vacuum tools lack efficient mechanisms for secure coupling and coordinated operation with multiple tools, leading to inefficiencies in cleaning tasks and potential fluid leakage.

Innovation Solution

The integration of latching mechanisms, tolerance rails, and sealing interfaces between vacuum and cleaning fluid nozzles in cooperating wet/dry vacuum tools, allowing for secure attachment and controlled delivery of cleaning fluid, enhancing task versatility and reducing leakage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional coupling mechanisms are used between vacuum tools, then the structure remains simple, but secure attachment and coordinated operation cannot be achieved

Engineering Contradiction:
Improvesecure couplingVSAvoidcoupling mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The coupling system is divided into separate functional components: latching mechanisms for secure attachment, tolerance rails for alignment, and sealing interfaces for fluid containment. Each component performs a specific function, allowing reliable coupling without requiring a monolithic complex structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The tolerance rails are integrated within the tool housing structure, and the latching mechanisms are nested within the coupling interface. This nesting approach allows multiple functional elements to coexist in a compact arrangement, achieving secure coupling without proportionally increasing external dimensions.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Adaptability or versatility

If multiple vacuum tools are used for different cleaning tasks, then task versatility is improved, but efficient coordination and secure attachment between tools becomes difficult

Engineering Contradiction:
Improvetask versatilityVSAvoidtool coordination
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The coupling interface is designed with universal features including standardized latching mechanisms, tolerance rails, and sealing interfaces that can accommodate different tool types (vacuum tools, cleaning fluid delivery tools, etc.). This allows multiple tools with different functions to be securely coordinated through a common coupling system.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The tolerance rails act as intermediary elements that facilitate precise alignment between different tool interfaces. The rails guide the coupling process and ensure proper positioning, making it easier to coordinate and attach different tool types securely.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Productivity

If cleaning fluid delivery is integrated with vacuum tools, then cleaning performance is enhanced, but fluid leakage becomes a potential problem

Engineering Contradiction:
Improvecleaning performanceVSAvoidfluid leakage
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

Sealing interfaces are introduced as intermediary elements between the cleaning fluid delivery system and vacuum tool. These sealing interfaces prevent direct exposure of potential leakage paths while maintaining the integrated functionality of the combined tool system.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The sealing interfaces utilize flexible sealing elements (such as O-rings or gaskets) that conform to the mating surfaces, creating effective fluid barriers. These thin film seals prevent leakage while allowing for manufacturing tolerances and thermal expansion.

Inventive Principle:
Principle #30Flexible shells and thin films

Data Source

PatentEP4591775A1Wet/dry vacuum tools with simplified containment tools and cooperating tool sets
Publication Date: 2025.07.30 SHARKNINJA OPERATING LLC
  • EP4591775A1 patent drawingFigure 1A~1B
  • EP4591775A1 patent drawingFigure 1C
  • EP4591775A1 patent drawingFigure 1D

AI summary

The present disclosure is generally directed to vacuum tools. In one example, a first wet/dry crevice tool is provided that can be coupled to a vacuum source and a cleaning fluid source. The first tool includes a vacuum orifice and a cleaning fluid nozzle assembly coupled to a cleaning fluid actuation mechanism to controllably deliver cleaning fluid to a target area to be cleaned. The vacuum orifice is configured to sealingly interface with another cooperating tool. The first tool includes latching mechanisms and tolerance rails to enable secure coupling of the first tool to another cooperating tool, for example a wet/dry containment tool.