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:
Apr. 06, 1993
Filed:
Jul. 11, 1991
Joseph B Milstein, Brighton, MA (US);
Ephraim S Greenberg, Brookline, MA (US);
Other;
Abstract
An oxygen sensor or cell for measuring the oxygen content of a specimen includes a body with a chamber that houses an electrochemically active anode and an electrochemically active cathode. A chemically inert, electrically inactive porous material is disposed between and in contact with the anode and cathode. An anode connector is in contact with the anode and a cathode connector is in contact with the cathode. An electrolytic solution of potassium hydroxide and a dissolved metal saturates the porous material and makes electrical connection between the anode and cathode. A specimen to be measured is introduced into the chamber. The electrolyte promotes catalytic reduction of free oxygen molecules carried by the specimen. The magnitude of current flow through a resistive load connected between the anode and cathode connectors is directly proportional to the quantity of oxygen present in the specimen.