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.
Patent No.:
Date of Patent:
May. 14, 1996
Filed:
Dec. 09, 1994
Applicant:
Inventors:
Gerhard Schneider, Vaihingen, DE;
Frank Westphal, Stegaurach, DE;
Margret Schuele, Markgroningen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart-Feuerbach, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
204426 ; 204408 ;
Abstract
The invention is based on a planar sensor element for determining the oxygen content of gas mixtures, particularly in internal combustion engines such as those found in automobiles. The sensor element comprises a measuring cell and an integrated heat conductor embedded in electric insulation all of which rest on a solid electrolyte substrate. At least one hollow chamber separates one or several parts of the insulation from the solid electrolyte substrate in order to effect an improved decoupling of the sensor's heat conductor from its measuring cell.