Multi-Cartridge Drain Gun for Staged Gas Release

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Solution Overview

Problem

Drain lines in HVAC and refrigeration systems can become clogged due to algae or other reasons, necessitating effective unclogging solutions.

Innovation Solution

A drain gun with a handle, trigger, and cartridges storing pressurized gas, featuring a staged release mechanism through check valves and nozzles to unclog drain lines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If a single cartridge containing pressurized gas is used, then the device is simple and portable, but it cannot provide staged or controlled release of gas for different clogging scenarios

Engineering Contradiction:

Improvedevice structureVSAvoidgas release control

Core Design Contradiction:

Device complexityVSAdaptability or versatility

Solution Approach 1:

The single cartridge is divided into multiple separate cartridges, each containing pressurized gas. This segmentation allows the system to provide staged and controlled gas release by activating individual cartridges or combinations thereof, enabling adaptation to different clogging scenarios while maintaining system manageability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The system incorporates a trigger mechanism that enables dynamic and staged release of pressurized gas from multiple cartridges. The trigger can be actuated to release gas in controlled sequences or combinations, providing versatility in gas delivery while maintaining a relatively simple overall device structure

Inventive Principle:

Principle #15Dynamics

2Stress or pressure

If an impulse of pressurized air from an external source is applied, then high pressure can be achieved to clear blockages, but the device lacks portability and requires external equipment

Engineering Contradiction:

Improvegas pressureVSAvoidportability

Core Design Contradiction:

Stress or pressureVSEase of operation

Solution Approach 1:

Multiple cartridges containing pressurized gas are merged into a single integrated system with a common trigger mechanism and discharge pathway. This combination allows the system to achieve high pressures comparable to external sources while maintaining portability, as the cartridges are self-contained and do not require external equipment

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The system uses multiple cartridges containing pressurized gas as the power source, eliminating the need for external compressors or pneumatic equipment. The pressurized gas from multiple cartridges is combined and delivered through a nozzle to clear blockages, achieving high pressure delivery in a portable format

Inventive Principle:

Principle #29Pneumatics and hydraulics

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

Effectively unclogs drain lines by controlled release of pressurized gas, ensuring efficient and targeted clearing of blockages.

Implementation Method 1

a first cartridge (120) storing a first pressurized gas, a second cartridge (120) storing a second pressurized gas

Methodology Applied

Scientific EffectGas expansion: Pressure Increase

Data Source

PatentEP3963139B1Multi-cartridge drain gun

Publication Date: 2025.09.03 DIVERSITECH

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AI summary

A drain gun includes a handle and a trigger. The handle includes a channel and a plurality of inlets. The inlets feed the channel. The trigger causes a staged release of a plurality of fluids from a plurality of cartridges to the channel via the inlets when the cartridges are stored in the handle and feeding the inlets.