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:
Dec. 04, 1984
Filed:
Sep. 07, 1982
Johannes G Schindler, Marburg an der Lahn, DE;
Maria Schindler nee Kardosova, Marburg an der Lahn, DE;
Fresenius AG, , DE;
Abstract
There is provided a measuring apparatus for determination of oxygen partial pressure in liquids and gases which comprises a substantially sheathed metallic cathode having a small, unsheathed metallic surface and a metallic anode, an ion impermeable but gas permeable membrane interposed between the material whose oxygen content is to be measured and the unsheathed metallic surface of the cathode, an electrolyte between said cathode and said anode and a barrier layer impermeable to cations of the material forming the anode, interposed between said anode and said unsheathed metallic surface of said cathode. Preferably said metallic anode is a silver anode enveloped with silver chloride being covered with said barrier layer.