초록 ▼

A combined water heating and vessel support plate for supporting the vessel of a beverage preparation device includes a heating slab having a water flow-through duct constituted by longitudinal apertures in a plurality of prismatic (preferably rectangular) heating-plate segments which are clamped to

A combined water heating and vessel support plate for supporting the vessel of a beverage preparation device includes a heating slab having a water flow-through duct constituted by longitudinal apertures in a plurality of prismatic (preferably rectangular) heating-plate segments which are clamped together side-by-side with PTC ceramic electrical resistance heating elements interposed between them. The duct is completed by connecting the apertures externally by tubes or by duct-incorporating end caps on the heating plate to form a continuous flow path from an inlet to an outlet. Various clamping arrangements, preferably with some resilience, are described, as are the use of inter-segment filling materials and electrically insulating materials with good heat-conducting properties, also the selection and positioning of the heating elements to achieve a desired heating effect. The top surfaces of the segments are coplanar and form a flat vessel support surface for heating a vessel placed thereon.

대표청구항 ▼

In a beverage preparation device for a vessel, a combined water heating and vessel support plate member for supporting the vessel for the device, said plate member comprising a heating slab including a freely selectable number of heating-plate segments of good heat conductivity and plate-like electr

In a beverage preparation device for a vessel, a combined water heating and vessel support plate member for supporting the vessel for the device, said plate member comprising a heating slab including a freely selectable number of heating-plate segments of good heat conductivity and plate-like electric heating elements of positive temperature coefficient electrical resistance, wherein: the heating-plate segments each being provided with a water flow-through duct, means for clamping adjacent heating-plate segments together side-by-side with their top surfaces coplanar to form a flat vessel support surface, the water flow-through duct of each segment comprising a longitudinal aperture, the apertures of adjacent segments being operatively connected to form a continuous duct having an inlet at one end and an outlet at the other end, and at least one heating element being disposed between each adjacent pair of heating-plate segments in heat exchange contact with the adjacent segments, and wherein any free intermediate space between heating-plate segments is filled with an electrically insulating filling composition which is a good conductor of heat.