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:
Feb. 26, 2008
Filed:
Mar. 25, 2002
Ivor W Jones, Chester, GB;
Glyn Atherton, Cheshire, GB;
Francis M Stackpool, Cheshire, GB;
Foseco International Limited, Staffordshire, GB;
Ionotec Limited, Cheshire, GB;
Abstract
The present invention relates to an electrochemical sensor for determining the concentration of a group IA metal in a fluid such as molten metal. The sensor comprises a substantially pure quantity of the group 1A metal as a reference electrode () contained in a sensor housing (), and a solid electrolyte constituting at least part of the sensor housing (). The electrolyte is in electrical contact with the reference electrode () and the sensor is capable of operating at temperatures in excess of 973K. In a preferred arrangement, the sensor comprises a two part elongate conductor (), a first part () of which extends from the reference electrode () into a refractory seal (), and a second part () of which extends from within the refractory seal () externally of the sensor, the two parts () being welded together.