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:
Sep. 06, 1977
Filed:
Apr. 14, 1972
Applicant:
Inventors:
Robert Kenneth Stringer, Heidelberg, AU;
Kenneth Alan Johnston, Elsternwick, AU;
Assignee:
Commonwealth Scientific and Industrial Research Organization, Campbell, AU;
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
2041 / ; 204 / ; 264 61 ;
Abstract
A probe for use in measuring the oxygen concentration of fluids comprising a disc or pellet of solid electrolyte located at or near the end of a ceramic tube, and an electrode within the tube contacting the inner face of the pellet, characterized in that the ceramic tube is constructed of alumina, mullite or an aluminous porcelain containing at least 4 per cent by weight of free alumina and not more than 40 per cent by weight silica, and the electrolyte is sealed to the tube by a fusion weld.