Inline Shower Dispenser with Movable Diverter for Controlled Refill

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing infusion and dispensing devices for aromatic liquids in shower systems lack efficient mechanisms for refilling and controlling the release of ingredients, leading to variability in fragrance distribution based on water flow rates.

Innovation Solution

An inline dispensing device with a housing, pump, and diverter assembly that includes a movable diverter for switching between refill and dispensing modes, allowing for controlled release of ingredients into the water stream and simplifying the refill process through a modular design.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a simple showerhead design is used, then device complexity is reduced, but control over ingredient release is insufficient leading to variability based on water flow rates

Engineering Contradiction:
Improvesystem complexityVSAvoidconsistency of fragrance distribution
Core Design Contradiction:
Device complexityVSReliability

Solution Approach 1:

The patent employs a movable diverter that can dynamically switch between different positions to control the release path of the ingredient. This dynamic mechanism allows the system to adapt between refill mode and dispensing mode, providing reliable control over ingredient release independent of water flow rate variations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The pump is designed to perform multiple functions: it can operate in a first mode to deliver ingredient to the showerhead during dispensing, and in a second mode to draw ingredient from a refill container during refilling. This multi-functionality reduces the need for separate mechanisms, maintaining simplicity while ensuring consistent controlled release.

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

2Device complexity

If a manual refill process is used, then device complexity is reduced, but loss of time increases due to shutdown requirements and manual intervention

Engineering Contradiction:
Improverefill mechanism complexityVSAvoidrefill time
Core Design Contradiction:
Device complexityVSLoss of time

Solution Approach 1:

The system enables self-service refilling by automatically switching the diverter to the refill position when the refill container is installed. The pump automatically operates in refill mode to transfer ingredient from the container to the storage reservoir, eliminating the need for manual intervention or system shutdown and significantly reducing refill time.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The refill container is designed with a pre-configured fluid coupling interface that automatically connects to the pump when installed. This preliminary setup allows the refilling process to begin immediately upon installation without requiring manual connection steps or system reconfiguration, minimizing time loss.

Inventive Principle:
Principle #10Preliminary action

3Device complexity

If a single pump is used for both dispensing and refilling, then device complexity is reduced, but ease of operation decreases due to mode switching requirements

Engineering Contradiction:
Improvepump system complexityVSAvoidoperational simplicity
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

The control system monitors the operational state and automatically switches the pump between dispensing mode and refill mode based on detected conditions. This feedback mechanism allows the single pump to handle both functions seamlessly, maintaining operational simplicity despite the dual-mode requirement.

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The patent combines the dispensing and refilling functions into a single pump system, merging two previously separate operations into one unified component. This consolidation reduces overall device complexity while the control system manages the mode transitions to maintain ease of operation.

Inventive Principle:
Principle #5Merging (Combining)

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

The solution enables precise control over the release of aromatic ingredients, ensuring consistent fragrance distribution regardless of water flow rates, while also simplifying the refill process and reducing system complexity.

Implementation Method 1

a pump, and a diverter assembly. The pump and the diverter assembly are disposed within the housing

Methodology Applied
Scientific EffectPump: Pump

Data Source

PatentUS20250075477A1Inline Shower Device
Publication Date: 2025.03.06 KOHLER CO(US)
  • US20250075477A1 patent drawing
  • US20250075477A1 patent drawing
  • US20250075477A1 patent drawing

AI summary

An inline dispensing device for dispensing an ingredient into a stream of water includes a housing, a pump, and a diverter assembly. The pump and the diverter assembly are disposed within the housing. The diverter assembly includes a diverter that is movable between a first position at which activation of the pump draws an ingredient into the housing, and a second position at which activation of the pump delivers the ingredient into the flow passing through the housing.