Heat Isolating Torch With Nested Shrouds For Safe Handling
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Solution Overview
Problem
Liquid fueled torches operate at high temperatures, posing safety risks when left unattended or relocated, as users often need to store or reposition them quickly without proper temperature isolation.
Innovation Solution
A heat isolating torch design featuring a flame bowl surrounded by an inner and outer shroud, with a heat dissipating support and a snuffer cap for safe handling, where the shrouds are angled to maintain a safe temperature gradient and prevent direct user contact with hot components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the torch operates at high temperatures to achieve desired flame presence and dispersal effect, then the effectiveness of the torch is improved, but the safety risk increases due to user contact with hot components
Solution Approach 1:
The torch is divided into distinct thermal zones using nested shrouds. The inner shroud surrounds the flame bowl while the outer shroud surrounds the inner shroud, creating segmented regions that isolate high-temperature components from user contact areas. This segmentation allows the flame to maintain high temperature while the outer surfaces remain cool to the touch.
Solution Approach 2:
The patent implements a nested structure where the inner shroud is positioned inside the outer shroud, both surrounding the flame bowl. This nested arrangement creates multiple layers of thermal isolation, allowing the inner components to operate at high temperatures while the outer layers dissipate heat and protect the user.
2Ease of operation
If the torch is designed with simple structure for ease of manufacture and relocation, then the ease of operation is improved, but the heat isolation capability deteriorates
Solution Approach 1:
The shrouds are designed as thin-walled structures that provide effective thermal isolation without adding significant weight or complexity. These thin film-like structures allow the torch to maintain heat isolation capabilities while remaining easy to handle, relocate, and store.
3Productivity
If the torch allows quick storage after use, then the productivity is improved, but the safety risk increases due to residual heat in components
Solution Approach 1:
The shroud structure is designed to automatically begin cooling the flame bowl and internal components as soon as the torch is extinguished or moved. The thermal isolation structure that protects the user during operation continues to function during storage, allowing the torch to be safely stored immediately after use without waiting for complete cooling.
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 effectively reduces surface temperatures at user-contact points, ensuring safety by maintaining the flame bowl and fuel canister at a lower temperature, discouraging accidental burns and facilitating safe storage and relocation.
Implementation Method 1
a heat dissipating support and a snuffer cap for safe handling, where the shrouds are angled to maintain a safe temperature gradient
Implementation Method 2
A heat isolating torch design featuring a flame bowl surrounded by an inner and outer shroud
Data Source
AI summary
A device having a flame bowl surrounded by a first, inner shroud. The device includes a shell having a second, outer shroud on an upper portion thereof, the outer shroud circumscribing at least a portion of the first shroud, and a support supporting the flame bowl and the first shroud in a fixed relationship with respect to the outer shroud.