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. 24, 2003

Filed:

Jul. 30, 2001
Applicant:
Inventor:

Tan Duc Huynh, Neuilly S/Marne, FR;

Assignee:

Valeo Climatisation, La Verriere, FR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 2/708 ; G01R 3/102 ; G01R 3/1327 ;
U.S. Cl.
CPC ...
G01R 2/708 ; G01R 3/102 ; G01R 3/1327 ;
Abstract

A temperature-measuring device for a heating/air-conditioning installation, having sensors biased by at least one electrical power-supply source including at least one series branch exhibiting a first and a second terminal coupled to terminals of a power-supply source, the first branch featuring a first (D ) and a second (D ) diode head to tail, connected between the first ( ) and the second ( ) terminal of the series branch, and also a first (CT ) and a second (CT ) detector connected in series between the first ( ) and the second ( ) terminal of the series branch, the common point between the first (D ) and the second (D ) diode being connected to the common point between the first (CT ) and the second (CT ) detector, and where a changeover-switching device is included for reversing the direction of the bias so that the first (CT ) or the second (CT ) sensor is traversed by a current.


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