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:
Mar. 04, 2003
Filed:
Oct. 12, 1999
Applicant:
Inventor:
Ralf Senner, Mainz, DE;
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 8/00 ;
U.S. Cl.
CPC ...
H01M 8/00 ;
Abstract
An apparatus for monitoring hydrogen and optionally a non-hydrogen gas including carbon monoxide. The apparatus includes a sensor assembly consisting of a plurality of electrochemical cells sequentially arranged in a path of the hydrogen-containing gas stream. Reaction and consumption of hydrogen at catalytically reactive surface areas of the cells generates a current which is proportional to the amount of hydrogen in the gas stream entering the sensor.