Patent · US Active

Method for monitoring a temperature-dependent resistor, particularly in a clothes dryer

US7748897B2 · kind B2 · utility

0Cited by

4References

14Claims

0Family size

Assignee

BSH Bosch und Siemens Hausgeräte GmbH · DE

Inventors

Kai-Uwe Bache · Berlin, DE
Thomas Nawrot · Berlin, DE
Ulrich Nehring · Berlin, DE
Andreas Ziemann · Potsdam, DE

Key dates

Filing date	Feb 8, 2006
Grant date	Jul 6, 2010
Priority date	—
Expiry date	Nov 23, 2026

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD06F2105/28
WIPO fieldOther consumer goods
WIPO sectorOther fields

Abstract

A method for monitoring the proper functioning of a temperature-dependent resistor, particularly a NTC resistor, for measuring the temperature of a medium heated by a heat source. Said medium is preferably the air flow in a clothes dryer for drying clothes. In order to increase the safety of a device, in particular a clothes dryer, where the temperature-dependent resistor is used in combination with a heat source, it is checked, once the heat source is switched on, whether the temperature measured by the resistor after a first predetermined period of time following the switching on of the heat source falls below a predetermined temperature threshold value. If this is the case, monitoring of a resistor-temperature curve characteristic of the temperature-dependent resistor is carried out.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.