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:
Nov. 03, 1998
Filed:
Jul. 24, 1996
Applicant:
Inventor:
Xiao Xu, Fremont, CA (US);
Assignee:
GasTech, Inc., Newark, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
204400 ; 204412 ; 204431 ; 204415 ; 73 3102 ;
Abstract
An electrochemical gas sensor comprising a sensing electrode, a counter electrode, an electrolyte reservoir, an upwardly extending projection disposed within the reservoir that supports the counter electrode, and a wick interposed between, and in contact with, the sensing and counter electrodes. The wick includes an overhang partially disposed in the electrolyte reservoir. The sensor may further include a reference electrode coplanar with and adjacent to the counter electrode. The sensor is accurate and sensitive, while also compact, reliable, and relatively simple to manufacture.