Pressure-Fed Adapter for Airless Spray Gun Versatility
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Solution Overview
Problem
Operators face the inconvenience of needing additional equipment when switching from airless paint sprayers to paint rollers, as they must provide a tray or a pressure-fed paint supply system, which complicates the painting process.
Innovation Solution
A handheld airless spray gun with a spray gun adapter that allows for the direct connection of a paint applicator accessory, enabling the spray gun to supply paint under pressure to the accessory without the need for additional equipment, by replacing the spray tip with the adapter and connecting tubing to the applicator.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an operator switches from airless paint sprayer to paint roller, then different painting method is achieved, but additional equipment (tray or pressure-fed supply system) is required
Solution Approach 1:
The spray gun system is modified to perform multiple functions by accepting different attachments. The adapter assembly enables the same pump and hose system to supply paint to both spray tips and roller applicators, making the equipment universal for different painting methods without requiring separate trays or supply systems
Solution Approach 2:
An adapter assembly serves as an intermediary component between the spray gun outlet and various paint applicators. This adapter provides a standardized connection interface that can accommodate both spray tips and roller applicators, eliminating the need for different supply systems while maintaining versatility
2Adaptability or versatility
If spray tip is removed and adapter is installed, then paint applicator connection is enabled, but spray painting function is lost
Solution Approach 1:
The painting system is segmented into modular components: the spray gun with pump, the removable adapter assembly, and interchangeable applicators (spray tips or rollers). This segmentation allows users to quickly swap between spray and roll functions by simply changing the applicator attachment while keeping the main paint supply system intact
Solution Approach 2:
The system transitions from a static spray-only configuration to a dynamic multi-function system. The adapter assembly can be quickly installed or removed, and applicators can be swapped without tools, allowing the system to adapt its function dynamically based on painting needs
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 seamless transition from spraying to rolling without requiring extra equipment, allowing for efficient paint application using either method with the same device, reducing setup time and complexity.
Implementation Method 1
The apparatus supplies paint under pressure to a paint applicator
Data Source
AI summary
A spray gun adapter establishes fluid communication between a fluid pump of a handheld airless spray gun and an applicator accessory. The adapter comprises an adapter body, a head attached to the adapter body, and a protrusion. The adapter body comprises an upper portion, a lower portion, a radial inlet located in a sidewall of the adapter body between the upper and lower portions, and an adapter bore having a first diameter in fluid communication with the radial inlet. The head comprises a cavity in fluid communication with the adapter bore and having a second diameter larger than the first diameter, an adapter outlet located in the upper portion of the adapter body and in fluid communication with the cavity, and a handle extending radially from the head. The protrusion extends radially from the adapter body between the upper and lower portions of the adapter body.