Liquid Applicator With Integrated Excess-Liquid Removal

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Solution Overview

Problem

Existing devices for applying liquids of varying viscosities often require separate removal cloths to address excess application, which can be inconvenient and lead to suboptimal cleaning due to lack of availability.

Innovation Solution

A device with an integrated removal device featuring a microfiber cloth for absorbing excess liquid, detachably connected to the housing, allowing for easy replacement and adaptation to liquid viscosity, and a bayonet lock mechanism for flexible application and removal units.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If an integrated removal device is added to the application device, then the convenience and completeness of the device is improved, but the device complexity increases

Engineering Contradiction:
Improveconvenience of liquid removalVSAvoidstructure complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent combines the application device and removal device into a single integrated unit. The removal device includes a removal element (such as a cloth or sponge) that is integrated into the housing structure, allowing both application and removal functions to be performed with one device. This merging eliminates the need for separate cloths or tools while maintaining operational convenience.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated device performs multiple functions: the valve unit meters and dispenses liquid through the application unit, while the removal device simultaneously provides the capability to remove excess liquid. The housing accommodates both the reservoir for liquid storage and the removal element, creating a multi-functional device that addresses both application and removal needs in a single unit.

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

2Adaptability or versatility

If a detachable outer part with microfiber cloth is used, then the adaptability and ease of replacement are improved, but the device complexity increases

Engineering Contradiction:
Improveadaptability to different liquidsVSAvoiddetachable connection structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The removal device is segmented into a detachable outer part that can be separated from the main housing. This outer part contains the microfiber cloth or removal element and can be independently removed and replaced. The detachable connection allows users to swap out worn or saturated removal elements without discarding the entire device, enhancing adaptability while maintaining a relatively simple connection structure.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If the removal device is positioned on the side of the housing opposite the valve unit, then the ease of operation for liquid removal is improved, but the device complexity increases

Engineering Contradiction:
Improveaccessibility of removal functionVSAvoidspatial arrangement
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The removal device is positioned on the side of the housing opposite the valve unit, utilizing the third dimension (lateral arrangement) rather than stacking components vertically. This spatial arrangement allows the removal element to be easily accessible from the outside of the housing, enabling users to perform removal operations without disassembling the device or reaching into confined spaces. The lateral positioning simplifies the operational workflow while maintaining a compact overall structure.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 efficient and convenient removal of excess liquid without separate cloths, ensuring optimal cleaning and versatility across different liquid types.

Implementation Method 1

a removal device (12) arranged for removing excess liquid from the surface wetted by the application unit (5)

Methodology Applied
Scientific EffectCapillary action: Capillary Action

Data Source

PatentEP3695910B1Device for applying a liquid
Publication Date: 2025.10.01 GUNAYDIN TURHAN
  • EP3695910B1 patent drawingFigure 1
  • EP3695910B1 patent drawingFigure 2
  • EP3695910B1 patent drawingFigure 3

AI summary

A device for applying a liquid of different viscosity to a surface to be wetted is presented, having a reservoir for the liquid arranged in a housing, a valve unit for the metered discharge of the liquid from an outlet opening of the reservoir and an application unit connected to the valve unit on its outer side facing away from the housing, wherein, according to the invention, a removal device for removing excess liquid from the surface wetted by the application unit is arranged on the side of the housing opposite the valve unit.