Disposable Paint Container with Segmented Propellant Reservoir
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Solution Overview
Problem
Existing disposable paint containers with large volumes face issues such as limited size, pressure loss, propellant loss, and quality degradation, making them impractical for large applications and environmentally unfriendly due to the need for multiple containers and recycling.
Innovation Solution
A disposable paint container design featuring a storage volume with a pressure control unit connected to a propellant reservoir, where the propellant reservoir is pre-assembled and sealed, allowing for safe storage and extended use without pressure loss, using a piercing element and pressure control unit to regulate pressure, and a CO2 cartridge for efficient spraying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a large volume disposable paint container is used, then the container volume is increased, but the handling becomes impaired or impossible
Solution Approach 1:
The system is divided into a reusable spray device (handheld unit) and a disposable container (supply source). The spray device contains the valve, nozzle, and control mechanisms, while the container holds the paint fluid. This segmentation allows the container to be large for volume while the spray device remains small and easy to handle, resolving the contradiction between container volume and handling ease.
2Volume of moving object
If a large volume disposable paint container is used, then the container volume is increased, but multiple containers must be used which increases environmental impact
Solution Approach 1:
The spray device is designed as a reusable component that can be refilled with multiple disposable containers, while the containers are designed for single-use disposal. This allows the expensive and complex spray mechanism to be recovered and reused, while only the simple container is discarded, reducing overall environmental impact compared to disposing of entire aerosol cans.
3Duration of action of stationary object
If a large volume container is stored for later use, then the storage duration is increased, but pressure loss and propellant loss occur
Solution Approach 1:
The propellant is separated into a dedicated reservoir within the disposable container, isolated from the main paint fluid storage. This segmentation allows the propellant to be contained in a pressure-maintaining reservoir that can be sealed until use, preventing pressure loss during storage while still enabling long-term storage of the paint container.
Solution Approach 2:
The propellant reservoir is pre-filled and sealed during container manufacturing, creating a ready-to-use pressurized system. The piercing element is pre-positioned but not yet activated. This preliminary preparation allows the container to be stored for long periods without pressure loss, as the sealed propellant reservoir maintains pressure until the moment of use when the piercing element is activated.
4Reliability
If a disposable container with pre-assembled propellant reservoir is used, then the storage safety is improved, but the device complexity is increased
Solution Approach 1:
The system separates the propellant reservoir from the main container body, with each having dedicated functions. The propellant reservoir is a self-contained pressure vessel that can be manufactured and tested independently, improving safety. The piercing element provides a simple mechanical interface that connects the two components only when needed, adding minimal complexity while enabling safe storage and controlled activation.
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 safe, long-term storage and use of large volumes of paint without pressure loss or quality degradation, reducing material usage and environmental impact, while allowing for easy handling and disposal.
Implementation Method 1
a piercing element for piercing the propellant reservoir can be positioned relative to the receiving unit
Implementation Method 2
a sealing section with which an outlet opening introduced into the propellant reservoir by means of the piercing element can be sealed
Implementation Method 3
paint fluid pressurized by the propellant can be sprayed via a spray nozzle
Data Source
Figure 1
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AI summary
The invention relates to a disposable container for receiving and delivering a coloured fluid by spraying, comprising a propellant reservoir, which can be tapped by means of a tapping element and can be re-closed.