Mass-Based Low Product Indicator for Dispensers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Dispensers for consumable products, especially those prone to UV degradation, lack a reliable mechanism to indicate low product levels without visual inspection, and there is a need for safe containment and disposal of accidental spills of concentrated products.
Innovation Solution
A dispenser design with a vertically movable container holder and level indicator system that alerts users to low product levels through color markings and a secondary container for spill containment and safe disposal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the container is made opaque to prevent UV degradation, then the product stability is improved, but the ability to visually inspect product level is lost
Solution Approach 1:
A biasing element (spring) acts as an intermediary mechanism that translates the mass of product in the container into vertical displacement of a indicator assembly. The spring responds to weight changes without requiring visual access to the container, solving the contradiction by providing indirect measurement through a mechanical mediator.
Solution Approach 2:
The patent replaces optical detection (visual inspection) with a mechanical detection system. Instead of looking through the container wall, the system uses a spring-based mechanical indicator that moves in response to product mass, substituting optical measurement with mechanical measurement.
2Difficulty of detecting and measuring
If a mechanical indicator system is added to indicate low product level, then the product level detection is improved, but the device complexity increases
Solution Approach 1:
The indicator system is self-actuating through the biasing element that automatically responds to product mass changes. No external power source, controls, or additional actuators are needed - the system uses the product's own weight to drive the indication mechanism, reducing complexity while maintaining detection capability.
Solution Approach 2:
The patent uses color-coded markings on the indicator assembly to provide clear visual signals for different product level states. This simple visual encoding system conveys complex information (product level status) through basic color changes, minimizing the complexity of the indication mechanism while maximizing information delivery.
3Difficulty of detecting and measuring
If the container holder is made vertically movable to enable indication, then the product level indication is improved, but the structural complexity increases
Solution Approach 1:
The biasing element (spring) functions as a counterweight mechanism that balances the container holder assembly. The spring provides an upward force that counteracts the weight of the holder and product, enabling smooth vertical movement and stable positioning without requiring complex motors, gears, or control systems.
Solution Approach 2:
The container holder is designed with dynamic vertical mobility rather than fixed positioning. This allows the holder to naturally respond to changing product mass through vertical displacement, converting a static structural element into a dynamic indicator that automatically reflects product level without additional complexity.
4Reliability
If a secondary container for spill containment is added, then the safety is improved, but the device complexity and space requirements increase
Solution Approach 1:
The secondary spill containment container is nested within or integrated with the primary product container structure. This nesting arrangement allows the spill containment function to be added without proportionally increasing the overall dispenser volume, as the secondary container utilizes existing structural space.
Solution Approach 2:
The secondary container serves multiple functions: it contains spills, provides structural support, and may serve as part of the indication mechanism housing. This multi-functionality reduces the need for separate dedicated components, minimizing the volume increase while maximizing safety and structural benefits.
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
Provides a convenient, reliable method to indicate low product levels without electricity or direct access, minimizing downtime and ensuring safe handling and disposal of spills.
Implementation Method 1
A biasing element supports the container holder within the housing, and urges the container holder upwardly
Data Source
Figure 1A
Figure 1B
Figure 1C
AI summary
A dispenser dispenses a consumable product from a container. The container is supported within a housing by a container holder. The container holder is vertically moveable within a movement range in the housing. A biasing structure biases the container holder upwardly. A sign is connected to move up and down with the container holder. An indicator associated with the sign is vertically fixed relative to the housing. When an amount of product remaining in the container reaches a low level, the biasing force of the biasing structure will lift the container holder, causing the indicator to be aligned with a portion of the sign that gives a visual cue to a user that the amount of product remaining is at a low level.