Dual-Propellant Dispensing Vessel for Pump-Free Portable Spraying

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Solution Overview

Problem

Existing substance dispensing systems face limitations such as power requirements, portability issues, and environmental hazards due to the use of mechanical pumps and flammable propellants, necessitating a pump-free, portable, and environmentally friendly solution.

Innovation Solution

A substance dispensing system utilizing a combination of carbon dioxide and nitrogen, argon, helium, or oxygen as propellants to exert pressure on substances within pressure vessels, eliminating the need for mechanical pumps and flammable propellants, and enabling dispensing of substances like adhesives and coatings without pumps.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If a mechanical pump is used to propel the composition, then the dispensing system can deliver substances effectively, but the system requires power sources (electrical motor or gasoline engine) which limit portability and create operational constraints

Engineering Contradiction:

Improvedispensing effectivenessVSAvoidportability

Core Design Contradiction:

ProductivityVSEase of operation

Solution Approach 1:

The patent replaces the mechanical pump system with a pressurized gas propellant system. Instead of using an electrical motor or gasoline engine to drive a mechanical pump, the invention uses compressed gas (such as nitrogen, carbon dioxide, or other suitable propellants) to directly propel the composition through the dispensing system. This substitution eliminates the need for power sources while maintaining effective dispensing capability, thereby improving portability without sacrificing productivity.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent employs pneumatic principles by using compressed gas as a propellant to move the composition through the system. The pressurized gas is introduced into the container holding the composition, creating pressure that forces the composition through the dispensing mechanism. This pneumatic approach replaces the mechanical pump-driven hydraulic system, eliminating the need for mechanical power sources and enhancing portability while maintaining dispensing effectiveness.

Inventive Principle:

Principle #29Pneumatics and hydraulics

2Ease of operation

If flammable propellants are used to propel the composition, then the dispensing system can operate without a mechanical pump, but the system creates safety hazards in environments with open flames or flammable materials

Engineering Contradiction:

ImproveportabilityVSAvoidsafety hazards

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The patent specifically employs inert gases such as nitrogen or carbon dioxide as propellants instead of flammable gases. These inert propellants do not support combustion and are safe to use in environments with open flames or flammable materials. By creating an inert atmosphere within the dispensing system using these non-reactive gases, the invention maintains portability and pump-free operation while eliminating fire and explosion hazards associated with flammable propellants.

Inventive Principle:

Principle #39Inert atmosphere (Inert environment)

3Ease of operation

If compressed gas propellants are used, then the dispensing system can operate without a mechanical pump, but the system releases volatile organic components which limits where the product can be used

Engineering Contradiction:

ImproveportabilityVSAvoidvolatile organic components

Core Design Contradiction:

Ease of operationVSObject-generated harmful factors

Solution Approach 1:

The patent changes the chemical composition parameters of the propellant from volatile organic compounds to non-volatile or low-volatility inert gases such as nitrogen and carbon dioxide. This parameter change eliminates the release of volatile organic components into the environment, allowing the dispensing system to be used in environments where VOC emissions are restricted or prohibited. The system maintains its portability and pump-free operation while generating no harmful volatile emissions.

Inventive Principle:

Principle #35Parameter changes

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 system provides a portable, pump-free method for dispensing substances, reducing environmental impact and operational constraints, while maintaining effective dispensing characteristics and versatility in spray patterns.

Implementation Method 1

a combination of the partial pressure of the first propellant and the partial pressure of the second propellant define a pressure within the first interior space... effect transport of the first substance from the first interior space

Methodology Applied

Scientific EffectPressure gradient: Pressure Gradient

Data Source

PatentUS20260001703A1Substance dispensing system and method of making

Publication Date: 2026.01.01 ADCO PROD INC

AI summary

A substance dispensing system including a first pressure vessel defining a first interior space; a first substance positioned in the first interior space; a first portion of a first propellant positioned in the first interior space; and a first portion of a second propellant positioned in the first interior space. At least 90 percent by weight of the first propellant is at least one of carbon dioxide, nitrous oxide, and combinations thereof. At least 90 percent by weight of the second propellant is at least one of nitrogen, argon, helium, oxygen, and combinations thereof.