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:
Jul. 06, 2004

Filed:

May. 10, 2002
Applicant:
Inventors:

Heinz Geier, Leonberg, DE;

Helmut Weyl, Schwieberdingen, DE;

Siegfried Nees, Neckarwestheim, DE;

Bernhard Wild, Markgroeningen, DE;

Thomas Egner, Kornwestheim, DE;

Peter Dettling, Waiblingen, DE;

Assignee:

Robert Bosch GmbH, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 7/00 ; G01N 3/3497 ; G01N 2/726 ; F16J 1/508 ;
U.S. Cl.
CPC ...
G01N 7/00 ; G01N 3/3497 ; G01N 2/726 ; F16J 1/508 ;
Abstract

A gas sensor includes a sensor element for determining at least one physical quantity of a gas, e.g., for determining the concentration of a gas component in an exhaust gas of an internal combustion engine or the temperature of the exhaust gas. The sensor element is fixed in position by the sealing system in a housing of the gas sensor. The sealing system includes at least one sealing element, which includes a mixture of a ceramic material and a glass. The hemisphere temperature of the glass is above 750° Celsius.


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