Pump-Driven Fluid Sprayer With Ambient Light Control
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Solution Overview
Problem
Current aerosol devices for delivering fine sprays or mists are hazardous due to pressurized containers and ozone-affecting propellants, and are expensive, necessitating a safer and more cost-effective method for producing a fine mist of liquids like insecticides.
Innovation Solution
A fluid delivery device comprising a reservoir, pump, electric motor, elastic bladder, adjustable nozzle valve, pressure release valve, and electronic control unit, which produces a fine mist of less than 50 micron droplets and can be controlled by ambient light sensors for targeted dispensing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If aerosol devices are used to produce fine mist, then fine spray delivery is achieved, but safety hazards and environmental harm occur due to pressurized containers and propellants
Solution Approach 1:
The patent removes the pressurized container and propellant from the system, extracting the harmful elements while retaining the fine mist delivery function through a pump-driven mechanism that uses mechanical pressure instead of compressed gas
Solution Approach 2:
The patent replaces the aerosol mechanical system (pressurized container with propellant) with an electrically-driven pump system that uses an electric motor to generate controlled pressure for mist delivery, eliminating the need for hazardous propellants
2Manufacturing precision
If aerosol devices are used for fine mist delivery, then spray quality is improved, but cost increases due to expensive propellants
Solution Approach 1:
The patent replaces expensive, specialized aerosol propellants with ordinary water or inexpensive carrier fluids that can be pumped through the system, significantly reducing material costs while maintaining mist delivery effectiveness
Solution Approach 2:
The patent substitutes the expensive aerosol delivery mechanism with a more economical electric pump system that uses readily available fluids, reducing both material and operational costs
3Object-affected harmful factors
If pump-driven delivery is used instead of aerosol, then safety and cost are improved, but achieving fine mist becomes more difficult
Solution Approach 1:
The patent employs a dynamic system with adjustable pump speed and variable nozzle characteristics to control droplet size, allowing the system to adapt and optimize mist fineness based on operating conditions rather than relying on fixed aerosol physics
Solution Approach 2:
The patent controls mist droplet size by adjusting key parameters including pump pressure, fluid flow rate, and nozzle geometry, enabling precise control over droplet dimensions through variable parameters rather than fixed aerosol formulation
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 device safely and efficiently delivers a fine mist of treating fluids, such as insecticides, without the hazards of aerosol propellants, offering adjustable delivery and energy-efficient operation, particularly during dusk and dawn hours.
Implementation Method 1
pump-driven fluid sprayer... a pump in fluid communication with the reservoir... delivers the fluid in a fine mist
Implementation Method 2
produces a fine spray or mist of the product... droplet sizes in the range of those produced by an aerosol device
Implementation Method 3
a bladder in fluid communication with the pump, the bladder comprising at least in part, an elastic portion
Implementation Method 4
the nozzle being adjustable from an open mode to a closed mode, and from a closed mode to an open mode, a rotatable valve member for adjusting the nozzle
Implementation Method 5
comparing a signal being received from an ambient light sensor to predetermined trigger values consistent with dusk and dawn ambient light conditions
Data Source
AI summary
A fluid delivery device including a fluid reservoir, a pump in fluid communication with the reservoir, an electric motor, a bladder in fluid communication with the pump, the bladder including at least in part, an elastic portion, a nozzle valve in fluid communication with the bladder, the nozzle being adjustable from an open mode to a closed mode, and from a closed mode to an open mode, a pressure release valve in fluid communication with the bladder and the fluid reservoir; and an electronic control unit for controlling delivery of the fluid. The invention also encompasses a method of delivering a treating fluid in a fine mist, including powering-up a fluid delivery device, comparing a signal being received from an ambient light sensor to predetermined trigger values consistent with dusk and dawn ambient light conditions, and dispensing treating fluid for a selected duration period on the basis of the signal being received from the ambient light sensor.