| 20110042110 | Flame Arresting Grease Filter - The invention relates to a device for arresting flames in a gas flow, for example in a kitchen hood, the device includes at least two substantially parallel spaced apart fire proof sheets, wherein the sheets are provided with perforated zones, wherein at least a channel is formed by a perforated zone of the sheet upstream of the gas flow, the space between the at least two sheets and a perforated zone of the sheet downstream of the gas flow, wherein the channel includes a section which has a reverse direction relative to the gas flow. | 02-24-2011 |