Fire-Starter Blade and Tray Spark Delivery

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Solution Overview

Problem

Conventional fire-starters are inefficient in producing and delivering sparks to a fuel source, often resulting in scattered sparks and increased user interaction, which decreases their effectiveness and ease of operation.

Innovation Solution

A fire-starter design featuring an outer shell with a first opening to receive a spark rod, a blade positioned adjacent to the opening to generate sparks when the spark rod is removed, and a tray to secure tinder, directing sparks towards the fuel source.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional fire-starters produce sparks, then the fuel source can be ignited, but the sparks scatter in all directions and are exposed to ambient environment

Engineering Contradiction:
Improvespark delivery effectivenessVSAvoiduser interaction required
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces a tray as an intermediary component that captures and directs sparks toward the fuel source. The tray acts as a mediator between the spark generation point and the tinder, preventing sparks from scattering in all directions and exposing them to ambient environmental factors. This intermediary structure significantly improves spark delivery effectiveness while reducing the user interaction needed to successfully ignite the fuel source

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If conventional fire-starters use liquid fuel sources, then small flames are produced that are easy to ignite fuel source, but they require frequent refilling and have higher upkeep cost

Engineering Contradiction:
Improveease of igniting fuel sourceVSAvoidusable lifetime
Core Design Contradiction:
Ease of operationVSDuration of action of moving object

Solution Approach 1:

The patent employs a disposable spark rod instead of a refillable liquid fuel system. The spark rod is designed to be consumed over time through repeated use, eliminating the need for frequent refilling and maintenance associated with liquid fuel sources. While each spark rod has a limited lifespan, the overall system reduces upkeep costs and operational complexity by using a simple, replaceable component rather than a complex refillable fuel system

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Reliability

If conventional fire-starters produce scattered sparks, then sparks can reach fuel source, but user interaction increases and effectiveness decreases

Engineering Contradiction:
Improveignition success rateVSAvoidoperational complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent introduces a spatial dimension to spark delivery by using a tray with specific geometry to channel and direct sparks toward the fuel source. Instead of allowing sparks to disperse in three-dimensional space in all directions, the tray constrains and directs them along a specific path, improving the probability of successful ignition while maintaining simple operational procedures

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 design enhances spark generation and delivery efficiency, improving the chances of igniting tinder and starting a fire while reducing user interaction and increasing operational ease.

Implementation Method 1

the blade is configured to generate sparks in the interior portion of the outer shell in response to the spark rod being removed from the first opening while in contact with the blade

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentUS20250116401A1Fire-starter
Publication Date: 2025.04.10 WOOD JESSE GLENN
  • US20250116401A1 patent drawing
  • US20250116401A1 patent drawing
  • US20250116401A1 patent drawing

AI summary

A fire-starter, according to one approach, includes: an outer shell having an upper end, as well as sidewalls coupled to the upper end. Together, the sidewalls and upper end form an interior portion of the outer shell. The fire-starter also includes a first opening in the outer shell, the first opening being configured to receive a spark rod and provide access to the interior portion of the outer shell. Furthermore, a blade is positioned in the interior portion of the outer shell and adjacent to the first opening. Accordingly, the blade is configured to come into contact with a spark rod that is inserted in the first opening. The blade is also configured to generate sparks in the interior portion of the outer shell in response to the spark rod being removed from the first opening while in contact with the blade.