Gravity Feed Valve and Filter for Spray Coating

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Solution Overview

Problem

Spray coating devices require significant time for cleaning and preparation, as reusable components need to be cleaned and liquid coating materials are often mixed and transferred from one container to another, leading to inefficiencies and waste.

Innovation Solution

A gravity fed container assembly with an integrated valve and filter assembly that allows for mixing, measuring, and adding of liquid coating material in a single container, which automatically opens when connected to a spray coating gun, reducing preparation time and preserving unsprayed material for later use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If liquid coating material is mixed and transferred from a mixing cup to a spray container, then the spray device can be operated, but considerable time is spent on preparation and transfer operations

Engineering Contradiction:
Improvespray operation efficiencyVSAvoidpreparation and transfer time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent combines the mixing cup and spray container into a single integrated container assembly. The container includes an integrated filter assembly and valve mechanism that allows coating material to be mixed directly in the container that will be used for spraying, eliminating the need for separate mixing and transfer operations between different containers.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The container assembly serves multiple functions: it acts as both a mixing vessel and a spray container, and the integrated filter assembly provides both filtration and valve actuation functions. This multi-functionality reduces the number of separate components and operations needed in the spray coating process.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If reusable components are used in spray devices, then device functionality is maintained, but significant time is required for cleaning these components

Engineering Contradiction:
Improvedevice reusabilityVSAvoidcleaning time
Core Design Contradiction:
Adaptability or versatilityVSLoss of time

Solution Approach 1:

The container assembly is designed as a separable unit that can be easily detached from the spray device. The filter assembly and valve mechanism are integrated into the container, allowing the entire assembly to be removed as one unit for cleaning or replacement, reducing the time and effort required to clean individual components.

Inventive Principle:
Principle #1Segmentation

3Extent of automation

If a valve is integrated with the filter assembly, then automated opening upon connection is achieved, but device complexity increases

Engineering Contradiction:
Improveautomatic valve openingVSAvoidvalve and filter integration
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The valve mechanism is integrated into the filter assembly, with the filter serving dual purposes: filtration of coating material and actuation of the valve through its positioning. This merging reduces the number of separate components while achieving automated valve opening when the container connects to the spray device.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentEP2948254B1Valve and filter system for a gravity feed spray container
Publication Date: 2019.03.13 CARLISLE FLUID TECHNOLOGIES INC
  • EP2948254B1 patent drawingFigure 1
  • EP2948254B1 patent drawingFigure 2
  • EP2948254B1 patent drawingFigure 3

AI summary

A system, including a gravity fed container assembly, including a container, a lid configured to cover a chamber in the spray coating supply container, wherein the chamber is configured to hold a spray material, a filter assembly within the chamber and configured to filter the spray material in the chamber, and a valve coupled to the filter assembly and configured to open when the container couples to a spray device, wherein the valve is configured to move the filter assembly from a first position to a second position, wherein the first position blocks the filter assembly from filtering the spray material and the second position enables filtering of the spray material.