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:
Sep. 18, 2018

Filed:

Mar. 20, 2014
Applicant:

Koninklijke Philips N.v., Eindhoven, NL;

Inventors:
Assignee:

KONINKLIJKE PHILIPS N.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24D 19/00 (2006.01); F24H 9/00 (2006.01); C02F 1/46 (2006.01);
U.S. Cl.
CPC ...
F24D 19/0092 (2013.01); C02F 1/4602 (2013.01); F24H 9/0047 (2013.01); C02F 2201/4613 (2013.01); C02F 2201/4614 (2013.01); C02F 2201/46135 (2013.01); C02F 2201/46145 (2013.01); C02F 2201/46155 (2013.01); C02F 2209/05 (2013.01); C02F 2209/055 (2013.01); C02F 2307/10 (2013.01);
Abstract

A method for heating a liquid in a heater having a heating element and a counter electrode includes the acts of (i) heating the liquid in the heater by heating the heating element to a temperature in the range of 120-250° C., and (ii) applying an AC potential difference between the heating element and the counter electrode. The AC potential difference varies with an AC frequency in the range of 200-2500 Hz and has an amplitude in the range of 1-5 V, and the liquid flows in the heater between the heating element and the counter electrode.


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