Refueling Assembly for Simultaneous Multi-Tank Refill

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Solution Overview

Problem

Conventional portable fuel canisters are not refillable and require specialized equipment, leading to waste and inconvenience, while existing refilling stations are not compatible with smaller tanks, necessitating multiple refills and increased hassle.

Innovation Solution

A refueling assembly comprising a chassis with docking ports, fuel conduits, and a fuel-source valve assembly that allows simultaneous refilling of multiple fuel tanks using conventional refilling stations, compatible with both larger and smaller tanks.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If conventional portable fuel canisters are used, then portability and convenience are improved, but refillability is lost leading to waste and environmental impact

Engineering Contradiction:
ImproveportabilityVSAvoidfuel waste
Core Design Contradiction:
Ease of operationVSLoss of substance

Solution Approach 1:

The fuel canister is designed with an integrated valve assembly and connector that enable it to refill itself at standard propane stations without requiring specialized equipment or manual intervention. The canister serves its own refilling needs through its built-in components.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The valve assembly incorporates a pressure-sensing mechanism that automatically regulates fuel flow based on the canister's fill level. When the canister reaches its maximum capacity, the pressure differential closes the valve, preventing overfilling and enabling precise control of the refilling process.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If conventional refilling stations are used for smaller tanks, then compatibility is improved, but specialized equipment and training are required

Engineering Contradiction:
ImprovecompatibilityVSAvoidspecialized equipment
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The valve assembly is designed with a connector that interfaces with standard propane station dispensers, allowing the same refilling infrastructure to serve both large stationary tanks and small portable canisters. This universal design eliminates the need for separate refilling systems.

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

Solution Approach 2:

The valve assembly acts as an intermediary device that bridges the connection between standard propane station dispensers and the fuel canister. It includes adaptive sealing mechanisms and pressure regulation that accommodate variations in connector types and fuel pressures.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Quantity of substance

If multiple small fuel canisters are used to meet fuel requirements, then fuel capacity is improved, but time and hassle for individual refilling increases

Engineering Contradiction:
Improvefuel capacityVSAvoidrefilling time
Core Design Contradiction:
Quantity of substanceVSLoss of time

Solution Approach 1:

The canister's automated valve system performs the refilling operation without requiring user intervention for each canister. Users simply connect the canister to the station and the system handles the entire refilling process automatically, eliminating manual pouring and sealing steps.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The pressure-regulated valve maintains continuous controlled fuel flow throughout the refilling process, preventing interruptions from overpressure conditions or premature disconnection. This ensures efficient, uninterrupted refilling that minimizes time loss.

Inventive Principle:
Principle #20Continuity of useful action

4Object-affected harmful factors

If refillable fuel tanks are designed, then environmental impact is improved, but compatibility with existing refilling infrastructure deteriorates

Engineering Contradiction:
Improveenvironmental impactVSAvoidinfrastructure compatibility
Core Design Contradiction:
Object-affected harmful factorsVSAdaptability or versatility

Solution Approach 1:

The connector design incorporates universal interfacing elements that work with both old and new propane station dispensers. The valve assembly adapts to different connector types and pressure regimes, allowing the refillable canister to operate across the entire spectrum of existing infrastructure.

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

Solution Approach 2:

The valve assembly includes adjustable pressure regulation and flow control mechanisms that can accommodate variations in station dispenser pressure and flow rates. This parameter adaptability ensures compatibility across different infrastructure configurations while maintaining safe and efficient refilling.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS20260063245A1Refueling assemblies for fuel tanks, refillable fuel tanks, and associated methods
Publication Date: 2026.03.05 IGNIK OUTDOORS INC
  • US20260063245A1 patent drawing
  • US20260063245A1 patent drawing
  • US20260063245A1 patent drawing

AI summary

Refueling assemblies comprise a chassis, at least one fuel conduit, a plurality of docking-port valve assemblies, and a fuel-source valve assembly. Refueling assemblies may be configured to simultaneously refill a plurality of fuel tanks. Fuel tanks comprise a fuel-receiving tank chamber and may include a fuel-tank male threaded member configured to be operatively coupled to a fuel-receiving device to deliver fuel from the tank to the fuel-receiving device. The fuel tanks may include a coupling member configured to be operatively coupled to a docking-port valve assembly of the refueling assembly but not to the fuel-receiving device. Methods of refilling a plurality of fuel tanks comprise operatively coupling each fuel tank to a refueling assembly, operatively coupling a fuel-source valve assembly of the refueling assembly to a fuel source, and opening a main valve of the fuel-source valve assembly to permit fuel to flow simultaneously to the plurality of fuel tanks.