Catalytic gas combustion device for an appliance for personal use

A catalytic gas combustion device hair care appliance for an appliance for personal use comprising a gas supply device that provides a stream of gas to a catalyst and an ignition device for igniting the gas and initiating catalytic combustion at the catalyst, wherein the gas supply has a bypass for branching off part of the stream of gas onto the ignition device,

• wherein the gas supply includes a first gas-permeable cover downstream of the bypass and the bypass includes a second gas-permeable cover, and
• wherein the gas supply comprises a tubular housing for conducting the gas, the tubular housing having an outlet, wherein the catalyst comprises a bowl-shaped screen body with an inlet connected to the outlet, and wherein the first gas-permeable cover is positioned at a transition from the outlet to the inlet, and
• wherein the bypass comprises a slot at the end of the tube comprising the outlet and the slot is covered by the second cover.

A catalytic gas combustion device hair care appliance for an appliance for personal use comprising a gas supply device that provides a stream of gas to a catalyst and an ignition device for igniting the gas and initiating catalytic combustion at the catalyst, wherein the gas supply has a bypass for branching off part of the stream of gas onto the ignition device,

• wherein the gas supply includes a first gas-permeable cover downstream of the bypass and the bypass includes a second gas-permeable cover,
• wherein the gas supply comprises a tubular housing for conducting the gas, the tubular housing having an outlet, wherein the catalyst comprises a bowl-shaped screen body with an inlet connected to the outlet, and wherein the first gas-permeable cover is positioned at a transition from the outlet to the inlet, and
• wherein the first cover and the second cover comprises a single covering part, wherein the first cover comprises an element having an on essentially bowl-shaped cross section, with an adjoining annular flange, and the second cover comprises a tab angled on the flange.

A method of treating hair, comprising treating hair with a hair care appliance comprising a gas supply device that provides a stream of an ignitable air/gas mixture to a catalyst, the gas supply device having a bypass upstream of the catalyst for branching off part of the ignitable air/gas mixture from the stream to an ignition device, also upstream of the catalyst, for igniting the ignitable air/gas mixture and initiating catalytic combustion of the catalyst.