Disposable Spray Container with Propellant Charge Can
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Solution Overview
Problem
Current aerosol spray paint systems do not allow for custom color and gloss selection at the point of sale, forcing consumers to search for matching colors and retailers to stock a wide range of pre-selected colors, leading to inefficient use of shelf space.
Innovation Solution
A system comprising a disposable container with a valve assembly and a pressurized charge can that can be configured to create a custom pressurized spray formulation by adding propellant and ingredients to a base liquid, allowing for immediate use by the consumer, with proprietary fittings ensuring safe and accurate pressurization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If pre-selected and predetermined colors and gloss are used in conventional spray paint, then manufacturing and distribution is simplified, but the end user cannot obtain custom color blends or exact color matches
Solution Approach 1:
The paint system is divided into separate components: a base liquid container and a charge can containing propellant and colorant. This segmentation allows the user to start with a base formulation and add specific colorants to achieve custom colors, rather than being limited to pre-mixed formulations.
Solution Approach 2:
The base liquid is prepared in advance in the container, and the propellant and colorant are pre-loaded in the charge can. This preliminary preparation enables quick customization at the point of use without requiring complex mixing equipment or extensive inventory of pre-mixed colors.
2Adaptability or versatility
If a large number of pre-selected colors are stocked by the retailer, then customer color selection is improved, but shelf space is consumed and inventory costs increase
Solution Approach 1:
The system uses a universal base liquid container that can be combined with different charge cans containing various colorants. This multi-functionality allows a single base container to serve multiple color needs, eliminating the requirement to stock separate pre-mixed cans for each color.
Solution Approach 2:
The charge can is designed as a disposable component that is attached to the base container only when needed. After use, the entire assembly is discarded, eliminating the need for retailers to maintain long-term inventory of multiple color variants.
3Adaptability or versatility
If propellant is added to a final liquid formulation at the point of sale, then custom formulations can be created, but safe and accurate pressurization becomes challenging
Solution Approach 1:
The charge can acts as an intermediary device that safely contains the propellant and colorant until needed. It provides a controlled interface for transferring these materials into the base container, eliminating the need for customers to handle propellant directly or use complex pressurization equipment.
Solution Approach 2:
The system uses pneumatic pressure from the charge can to automatically transfer the propellant and colorant into the base container. This hydraulic/pneumatic mechanism ensures accurate and safe pressurization without requiring manual intervention or specialized knowledge from the user.
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 consumers to select exact custom colors and gloss levels, reducing retailer inventory needs and allowing for efficient use of shelf space, while ensuring safe and effective pressurization of the spray container.
Implementation Method 1
a pressurized charge can that is designed to temporarily attach to the valve assembly or through a fitting in the bottom of the disposable container in order to pressurize the disposable container
Data Source
AI summary
A spray system for dispensing a homogenous mixture of a liquid formulation and propellant as an atomized aerosol where a disposable container containing a liquid base is used alone or secured within a rigid container and is charged through a fitting in fluid communication with the interior of the disposable container using a detachable pressurized charge can containing a propellant compatible with the liquid base. Preferably the liquid formulation is a paint base that can be tinted at the point of sale before charging with the charge can.