Importance

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Abstract

A protected combustion device includes a main body, which is double layered, including an inner-layer wall and an outer-layer wall disposed outside of and spaced from the inner-layer wall. The inner-layer wall and the outer-layer wall include a hollow disposed therebetween. The inner-layer wall forms a fuel receptacle with an opening. The outer-layer wall has an open end and the open end defines a hole. The hole is in communication with the hollow. The open end of the outer-layer wall forms a bottom side. A protection device is coupled to the main body. The protection device includes a through hole extending therethrough and communicating with the hollow. The protection device includes a slot extending along a periphery of the through hole and the bottom side is disposed in the slot.

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First Claim