Reusable Paint Dispensing Valve Assembly

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Solution Overview

Problem

Traditional spray paint cans have a sealed valve assembly within the canister, making the valve usable only with that one canister and requiring special disposal instructions for unused paint and propellant.

Innovation Solution

A reusable fluid dispensing apparatus with a removable valve assembly that can be attached to multiple canisters, comprising a valve body, an adaptor with a piercing member, and a nozzle, allowing for efficient dispensing of pressurized paint without the need for internal valves in the canister.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a valve assembly is sealed within the canister, then the canister can be manufactured with a simple structure, but the valve becomes usable only with that one canister and cannot be removed

Engineering Contradiction:

Improvecanister manufacturing simplicityVSAvoidvalve reusability

Core Design Contradiction:

Ease of manufactureVSAdaptability or versatility

Solution Approach 1:

The valve assembly is separated from the canister structure, allowing the valve to be a standalone component that can be attached to multiple canisters. The canister is designed with an external threading structure that accepts the valve assembly, enabling the valve to be removed from one canister and installed on another.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The valve assembly is designed as a universal component that can be used with multiple different canisters. The external threading and standardized connection interface allow a single valve assembly to serve multiple canisters, increasing versatility and reducing waste.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Device complexity

If the valve assembly is sealed within the canister, then the canister structure is simplified, but special disposal instructions are required for unused paint and propellant

Engineering Contradiction:

Improvecanister structureVSAvoiddisposal process

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The valve assembly is extracted from the sealed canister structure and positioned externally. This allows the valve to be removed and reused with another canister, enabling the original canister to be emptied completely by connecting a different valve assembly, thus simplifying disposal.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The valve assembly is designed to be recoverable and reusable rather than disposable. After use with one canister, the valve can be removed and installed on another canister, extending its service life and reducing the need for new valve assemblies with each canister.

Inventive Principle:

Principle #34Discarding and recovering

3Reliability

If the valve is installed within the canister before filling, then the valve can control the dispensing, but the unused contents must be manually discharged through the nozzle

Engineering Contradiction:

Improvedispensing controlVSAvoidmanual discharge time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The valve assembly is designed to be dynamically attachable and detachable from the canister. This dynamic connection allows the valve to be removed after use, enabling complete emptying of the canister contents through the external passage without manual discharge through the nozzle.

Inventive Principle:

Principle #15Dynamics

4Adaptability or versatility

If a reusable valve assembly is used with multiple canisters, then adaptability is improved, but the valve assembly must be externally threaded and attached

Engineering Contradiction:

Improvevalve compatibilityVSAvoidvalve attachment structure

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The valve assembly is merged with the canister during use through external threading, creating a unified dispensing system. The threading structure integrates the valve and canister securely, providing a reliable connection that functions as a single unit during dispensing operations.

Inventive Principle:

Principle #5Merging (Combining)

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 the use of a single, reusable valve assembly with multiple paint containers, simplifies the disposal of empty containers, and allows for efficient dispensing of paint while minimizing waste.

Implementation Method 1

dispensing a fluid from an associated container under a pressure greater than ambient

Methodology Applied

Scientific EffectPressure gradient: Pressure Gradient

Data Source

PatentUS12330175B2Paint dispensing method and apparatus

Publication Date: 2025.06.17 SWIMC LLC

AI summary

A fluid dispensing apparatus may be used to dispense a fluid from a container that is under pressure and that has a pierceable membrane. The fluid dispensing apparatus may include a valve body having a bore, an adaptor having a bore and a piercing member, and a nozzle having a bore. The fluid dispensing apparatus may be operable to pierce the pierceable membrane to communicate the fluid within the container with the adaptor bore and with the valve body bore. The nozzle may be operable to permit the fluid to flow under the pressure out of the container, through the adaptor bore, through the valve body bore and through the nozzle bore to ambient.