Coffee making machine with automatic removal of the scale

Details Coffee making machine with automatic removal of the scale Coffee making machine with automatic removal of the scale

F - Mech Eng,Light,Heat,Weapons

24

H

309/18

F24H 1/00 (2006.01) A47J 31/057 (2006.01) A47J 31/54 (2006.01)

Patent

CA 1096917

PHN. 8631. ABSTRACT: The invention relates to an electrical heat- ing apparatus for water, comprising a heating chamber and an electric heating element, as is for example generally employed in domestic appliances such as coffee- makers. The construction in accordance with the inven- tion serves to mitigate the problem of scale deposit on the wall of the heating chamber and for this purpose comprises an automatic device for temporarily raising the temperature of the wall to the decomposition temper- ature of scale, whilst the wall is manufactured of a material which can withstand this temperature, such as for example quartz-glass.

293134

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