Modular head system for handheld extraction cleaner, dry vacuum accessory for handheld extraction cleaner, and handheld extraction cleaner

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Solution Overview

Problem

Existing handheld extraction cleaners lack the ability to efficiently switch between wet and dry cleaning modes without requiring users to manually adjust settings or components, leading to inefficiencies and potential damage to the device.

Innovation Solution

A modular handheld extraction cleaner system with interchangeable wet and dry cleaning heads, featuring a suction source, fluid delivery system, and an override mechanism that automatically disables the fluid delivery system when the dry cleaning head is attached, ensuring seamless transitions between cleaning modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a handheld extraction cleaner is designed with a fixed cleaning head configuration, then the device structure is simple, but the adaptability to different cleaning modes (wet/dry) is poor

Engineering Contradiction:
Improvecleaning mode adaptabilityVSAvoiddevice structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The cleaning head is divided into separate modular components (wet cleaning head and dry cleaning head) that can be independently attached and detached from the handheld base, allowing the device to adapt to different cleaning modes while maintaining a relatively simple overall structure

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The handheld base is designed with a universal receiver that can accommodate both wet and dry cleaning heads, enabling a single base unit to perform multiple cleaning functions by simply changing the attached head

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

2Productivity

If manual configuration is required to switch between wet and dry cleaning modes, then the device structure is simple, but the operation efficiency is reduced

Engineering Contradiction:
Improvemode switching efficiencyVSAvoidsetup complexity
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The system automatically detects the type of cleaning head attached and self-configures the fluid delivery system accordingly, eliminating the need for users to manually adjust settings or perform setup procedures when switching between wet and dry cleaning modes

Inventive Principle:
Principle #25Self-service

3Reliability

If the fluid delivery system remains active when a dry cleaning head is attached, then the system is simple to control, but device components may be damaged

Engineering Contradiction:
Improvecomponent protectionVSAvoidcontrol mechanism
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The control system continuously monitors the type of cleaning head attached to the base and provides feedback to automatically control the fluid delivery system, enabling it to activate only when a wet cleaning head is detected and remain inactive when a dry cleaning head is attached, thereby protecting components from damage

Inventive Principle:
Principle #23Feedback

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 quick and efficient cleaning of various surfaces by allowing users to switch between wet and dry cleaning without additional setup, protecting device components, and optimizing performance for different debris types.

Implementation Method 1

a suction source configured to generate a suction air stream for recovering debris from a surface to be cleaned

Methodology Applied
Scientific EffectSuction: Suction

Implementation Method 2

a fluid delivery system configured to dispense a cleaning solution from a fluid distributor to the surface to be cleaned

Methodology Applied
Scientific EffectFluid dispensing:

Data Source

PatentUS12611077B2Modular head system for handheld extraction cleaner, dry vacuum accessory for handheld extraction cleaner, and handheld extraction cleaner
Publication Date: 2026.04.28 BISSELL INC
  • US12611077B2 patent drawing
  • US12611077B2 patent drawing
  • US12611077B2 patent drawing

AI summary

A cleaning apparatus includes a housing, a suction assembly, and a fluid delivery system. A wand is coupled to the housing via an accessory hose. The wand includes a trigger and a fluid outlet. Actuation of the trigger provides fluid communication between the fluid delivery system and the fluid outlet for releasing a liquid. A vacuum tool is coupled to the wand. The vacuum tool includes a support body that defines an open end for receiving the wand and includes a guard that extends beyond the open end to extend over the trigger to prevent the actuation of the trigger. An intermediate recovery tank is coupled to the support body and defines an inlet in fluid communication with the suction assembly. A separator is disposed within the intermediate recovery tank to retain the debris within the interior and allow airflow to be directed through the separator to the accessory hose.