The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 08, 1982

Filed:

Jan. 16, 1979
Applicant:
Inventors:

Hanno Roller, Kandel, DE;

Helmut Ohnmacht, Kandel, DE;

Ludwig Lieber, Steinweiler, DE;

Karl-Heinz Nauerth, Erlenbach, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A47J / ; F24H / ; H05B / ;
U.S. Cl.
CPC ...
219283 ; 99288 ; 219298 ; 219299 ; 219301 ; 219302 ; 219505 ; 338 / ;
Abstract

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.


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