Adjustable Spray Paint Cap for Variable Spray Pattern Control
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Solution Overview
Problem
Existing spray paint cans require multiple caps to achieve different spray effects, which is time-consuming and costly, and typical caps lack the ability to emulate airbrush functionality.
Innovation Solution
A proportionally controlled cap for spray paint cans that allows the actuator button to slide relative to the main body, changing the spray pattern by adjusting the needle valve needle's position within the nozzle, enabling various spray effects without cap changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple caps are used to achieve different spray effects, then spray pattern variety is improved, but device complexity and cost increase
Solution Approach 1:
The cap incorporates a movable actuator button that can be positioned at multiple locations along its length, allowing dynamic adjustment of the spray pattern from narrow to wide without requiring multiple physical caps. The needle valve moves with the actuator button to control the spray characteristics in real-time.
Solution Approach 2:
A single cap design performs multiple functions by incorporating an adjustable actuator mechanism that enables the same cap to produce various spray patterns (narrow, medium, wide) and emulate airbrush functionality, eliminating the need for separate caps for different spray effects.
2Ease of operation
If traditional caps are used, then device simplicity is maintained, but spray control precision and airbrush emulation capability are reduced
Solution Approach 1:
The actuator button can be slid along the main body to dynamically adjust the spray pattern while maintaining a relatively simple overall cap structure. The needle valve mechanism provides precise control over paint flow without requiring complex external control systems.
3Adaptability or versatility
If a single cap is used for all spray effects, then device simplicity is maintained, but spray pattern adaptability is reduced
Solution Approach 1:
The cap features a movable actuator button that can be positioned at different locations along the main body, allowing a single cap to adapt and produce various spray patterns dynamically without requiring multiple caps or complex interchangeable mechanisms.
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 a single cap to achieve a range of spray patterns, from narrow to wide, mimicking airbrush control, while using a standard spray paint can, reducing the need for multiple caps and expensive airbrushes.
Implementation Method 1
As the liquid paint exits the cap, the propellant mixed with the liquid paint rapidly expands into a gas causing the paint to atomize to form a spray
Implementation Method 2
sliding the actuator button relative to the main body cause the needle valve needle to move within the needle valve nozzle to change a spray pattern exiting the needle valve
Data Source
AI summary
Described herein are proportionally controlled caps for spray paint cans that can provide a variety of spray effects and/or spread in the spray of paint without changing caps. The disclosed proportionally controlled caps include actuating elements that change the spread in spray paint to achieve a targeted spread. The cap includes an actuator button that is configured to move relative to a main body to cause a needle valve to change the spread in paint leaving the needle valve. The disclosed caps for spray paint cans can be configured to fit typical spray paint cans so that the disclosed caps can be used to replace the typical caps that come with spray paint cans, enabling typical spray paint cans to achieve a variety of spray effects and/or spreads in spray paint with a single cap.