Dual Mode Foaming Spray Gun Rotatable Barrel
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Solution Overview
Problem
Consumer-grade combination sprayers and soap dispensers attached to garden hoses are ineffective in creating a foamy spray, resulting in inefficient detergent usage as the mixture of soap and water exits the nozzle as a concentrated liquid rather than an airy foam.
Innovation Solution
A dual-mode spray gun with a mixing valve and barrel design that allows users to switch between spraying and foaming operations, incorporating aeration ports to increase foaminess, and a rotatable barrel for adjusting the spray angle, ensuring efficient mixing and aeration of soap and water to produce a foamy spray.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If a conventional sprayer nozzle is used to dispense soapy water, then the detergent can be dispensed through the nozzle, but the mixture exits as a concentrated liquid rather than an airy foam, causing inefficient detergent usage
Solution Approach 1:
The patent employs a foam nozzle with porous structure containing multiple small orifices that force the soapy water mixture to break up into fine droplets and incorporate air, transforming the concentrated liquid stream into an airy foam. This porous nozzle design is the key mechanism that converts inefficient liquid discharge into effective foam generation, resolving the contradiction between detergent waste and foam generation efficiency.
2Productivity
If a dual-mode spray gun with mixing valve and aeration ports is used, then foamy spray is generated improving coverage, but the device complexity increases
Solution Approach 1:
The patent combines multiple functions into a single integrated spray gun device: the mixing valve merges water and detergent flows, the aeration ports introduce air into the mixture, and the foam nozzle creates the final foamy spray. By merging these separate functions (mixing, aeration, and foam generation) into one unified device, the patent achieves improved spray coverage efficiency while minimizing the increase in device complexity through functional integration.
Solution Approach 2:
The spray gun is designed with dual-mode capability, allowing it to function both as a conventional sprayer and as a foam generator. The mixing valve can operate in different positions to deliver either straight water spray or mixed soapy foam, making the device universal and adaptable to different cleaning needs. This multi-functionality improves productivity by providing versatile coverage options without requiring multiple separate devices.
3Productivity
If a rotatable barrel is added to adjust spray angle, then better application coverage is achieved, but the device complexity and difficulty of operation increase
Solution Approach 1:
The patent incorporates a rotatable barrel mechanism that allows the spray nozzle to be dynamically adjusted to different angles and directions. This dynamic positioning capability enables the user to adapt the spray pattern to various surface geometries and application needs, significantly improving application coverage. The rotational degree of freedom is designed to be manually operable, balancing the need for versatile coverage with ease of operation.
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
The dual-mode spray gun effectively generates a foamy spray, reducing detergent waste and improving coverage by introducing air into the soap-water mixture through aeration ports and allowing adjustable spray angles for better application.
Implementation Method 1
incorporating aeration ports to increase foaminess, and a rotatable barrel for adjusting the spray angle, ensuring efficient mixing and aeration of soap and water to produce a foamy spray
Implementation Method 2
a mixing valve with first and second inlets and first and second outlets... In the second position, the mixing valve stops flow to the first outlet, and allows flow from to the second outlet from both the first inlet and the second inlet
Data Source
AI summary
A dual mode spray gun has a mixing valve with two inlets, two outlets and a rotatable barrel. A handle assembly extending proximally from the valve couples the first inlet to pressurized water and provides means for manually starting and stopping flow. A barrel extending distally from the valve has a rotatable seal joint defining a static end and a rotatable end. The barrel includes a first channel fluidically connecting the first outlet to a spray port and a second channel fluidically connecting the second outlet to a foam port. The rotatable seal joint includes a means for rotating the rotatable end relative to the static end while maintaining an internally fluidically sealed environment. The mixing valve includes a means for switching outflow between the first outlet and the second outlet.