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:
Feb. 07, 2023

Filed:

Dec. 14, 2016
Applicant:

Stiebel Eltron Gmbh & Co. KG, Holzminden, DE;

Inventors:

Hubert Nolte, Höxter, DE;

Martin Herrs, Höxter, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24H 1/10 (2022.01); F24H 9/20 (2022.01); G05D 23/19 (2006.01);
U.S. Cl.
CPC ...
F24H 1/106 (2013.01); F24H 1/103 (2013.01); F24H 9/2028 (2013.01); G05D 23/1931 (2013.01);
Abstract

A tankless water heater comprising a bare wire heating element is disclosed which is connected to an electronic temperature control system. At least one sensor is furthermore connected to the electronic temperature control system. A fluid heating chamber is made of insulating non conductive material wherein the heating element is located. At least one switch is connected to at least one bare wire heating element and to a phase of an AC line. An electrode system and an electronic detecting circuit are interconnected. The electrode system is arranged in a fluid channel, in a short distance from the bare wire heating element which acts like electrode 1. The electrode 2 of the electrode system is made from a conductive tube material hydraulically connected to a throttle valve made from non conductive material to insulate the electrode 2 from the grounded collector. The electrode 2 is electrically connected to a electronic control system via a conductive material.


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