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. 11, 1989
Filed:
Feb. 03, 1988
Anthony B LaConti, Lynnfield, MA (US);
Arthur E Griffith, Lynn, MA (US);
Giner, Inc., Waltham, MA (US);
Abstract
A fast response diffusion-type sensor cell for the detection of carbon monoxide and other oxidizable or reducible gases comprising a three-electrode hydrated proton-conducting membrane cell configuration, with all electrodes in intimate contact with the same proton-conducting membrane is described. The liquid electrolyte-free system has a porous gas-diffusion sensing electrode and a counter electrode located on the same side of and in intimate contact with the proton-conducting membrane. The reference electrode is spatially located on the same or opposite side of the membrane as are the sensing and counter electrodes. The cell configuration is advantageous in that (1) the ionic resistance value between the sensing/reference electrodes is lower than that between the sensing/counter electrodes, and (2) the sensing and counter electrodes being on the same side of the membrane and connected by one or more hydrated proton-exchange membrane channels leads to faster response times and greater immunity to interference from counter electrode reaction products.