Subsurface Watering Float Valve

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Solution Overview

Problem

Existing subsurface watering devices lack efficient water flow control mechanisms, leading to unnecessary water wastage as they do not accurately sense soil moisture levels and regulate water supply accordingly.

Innovation Solution

A flow-control assembly featuring a float and float-controlled valve system that adjusts water flow into the soil based on demand, using a casing with a float that rises and falls with water levels to control the valve's orifice, ensuring water is released only when needed.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If a float-controlled valve system is added to regulate water flow, then water conservation improves, but device complexity increases

Engineering Contradiction:
Improvewater wastageVSAvoidflow control assembly complexity
Core Design Contradiction:
Loss of substanceVSDevice complexity

Solution Approach 1:

The float-controlled valve system operates autonomously by utilizing the buoyancy of the float to automatically open or close the valve based on water level in the container, eliminating the need for external control mechanisms or power sources. This self-regulating mechanism prevents water wastage while maintaining relatively simple device complexity

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The float mechanism provides continuous feedback on the water level within the container through its rising and falling motion. When water accumulates to a certain level, the float rises and triggers the valve to close, preventing over-saturation. This feedback loop ensures water is released only when needed by the soil, directly addressing water conservation

Inventive Principle:
Principle #23Feedback

2Reliability

If water flow is continuously supplied to ensure adequate soil moisture, then vegetation growth is supported, but soil over-saturation occurs leading to water wastage

Engineering Contradiction:
Improvesoil moisture availabilityVSAvoidwater wastage
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The float-controlled valve system continuously monitors water accumulation in the container and automatically regulates flow based on real-time conditions. When soil moisture is sufficient and water accumulates in the container, the float rises and closes the valve, preventing over-saturation. When soil is dry, water flows freely to support vegetation growth

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system dynamically adjusts water flow rates based on changing soil moisture conditions and environmental factors. The valve transitions between fully open, partially open, and closed states as the float responds to water level changes, allowing the system to adapt to varying vegetation needs and prevent both under-watering and over-saturation

Inventive Principle:
Principle #15Dynamics

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

This solution conserves water by precisely regulating the flow of water into the soil based on its moisture levels, preventing over-saturation and reducing wastage.

Implementation Method 1

a float having an open bottom and a closed top with a projection extending from the top, wherein the float is disposed within the casing for sensing a demand for water by the soil in which a said container is deployed by rising and falling in accordance with the level at which water accumulates within the container

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Implementation Method 2

means for regulating the flow of water into the container through the inlet in accordance with the sensed demand for water by the soil, the regulating means comprising; a float-controlled valve dimensioned for placement within the container above the float for regulating the flow of water into the inlet of the container through an orifice in the valve

Methodology Applied
Scientific EffectHydraulic valve control: Valve

Data Source

PatentUS8127491B1On-demand control of subsurface watering
Publication Date: 2012.03.06 VOIGT III JOHN LOUIS
  • US8127491B1 patent drawing
  • US8127491B1 patent drawing
  • US8127491B1 patent drawing

AI summary

A watering device for deployment within soil for watering vegetation by releasing water into the soil in which the vegetation is growing. The device includes a container that is shaped for being deployed at least partially within soil. The container has an inlet for receiving a flow of water into the container and a plurality of apertures through which water can flow from the container. A flow-control assembly is coupled to the inlet of the container for regulating the flow of water into the container in accordance with a demand for water from the soil. The assembly includes a float disposed for rising and falling in accordance with the level at which water accumulates within the container; and a valve coupled to the float for regulating the flow of water into the container through the inlet in accordance with the level of the float. When the container is deployed at such a depth in soil that water can flow through the apertures of the container into the soil, and the soil becomes so saturated with water that the water flowing into the container accumulates within the container, the level of the float rises as the water accumulates and thereupon causes the float to rise until the valve shuts off the flow of water into the container through the inlet.