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US 11,353,297 B2Granted
Torch
AssigneeShinfuji Burner Co., Ltd.
InventorHiroshi Yamamoto
Life of this patent
Estimating the term…
Abstract
A torch includes a main burner that produces a flame; a flame holding body configured to maintain the combustion state of the main burner if the flame produced by the main burner is about to be extinguished; and a gas supply pipe configured to feed combustion gas from a gas container filled with the combustion gas to the main burner and the flame holding body.
Claims17
A torch comprising:
- a main burner that produces a flame;
- a flame holding body configured to maintain a combustion state of the main burner if the flame produced by the main burner is about to be extinguished;
- and
- a gas supply pipe configured to feed combustion gas from a gas container filled with the combustion gas to the main burner and the flame holding body;
- wherein the flame holding body includes a catalyst that produces catalytic combustion of gas to prevent the flame from being extinguished.
2 more elements
A torch comprising:
- a main burner that produces a flame;
- a flame holding body configured to maintain a combustion state of the main burner if the flame produced by the main burner is about to be extinguished;
- and
- a gas supply pipe configured to feed combustion gas from a gas container filled with the combustion gas to the main burner and the flame holding body,
- wherein the gas feed pipe is connected to a first intake pipe that feeds gas to the main burner, and to a second intake pipe that feeds gas to the flame holding body, such that either (i) mixtures of gas and air having different gas concentrations from the first intake pipe and the second intake pipe, or (ii) only gas from the first intake pipe and a mixture of gas and air from the second intake pipe, can be fed to the main burner and the flame holding body, respectively.
2 more elements
Dependencies are inferred from the claim text.