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. 17, 2019
Filed:
Aug. 20, 2015
Carrier Corporation, Farmington, CT (US);
Lei Chen, South Windsor, CT (US);
Zhiwei Yang, South Windsor, CT (US);
Antonio M. Vincitore, South Windsor, CT (US);
Michael L. Perry, Glastonbury, CT (US);
Warren Clough, Cicero, NY (US);
CARRIER CORPORATION, Palm Beach Gardens, FL (US);
Abstract
A gas sensor for detecting one or more contaminants in a refrigerant includes a housing having disposed therein a membrane electrode assembly comprising a sensing electrode, a counter electrode, and a solid polymer electrolyte disposed between the sensing electrode and the counter electrode. The sensing electrode comprises nanoparticles of a first catalyst comprising noble metal. The counter electrode comprises nanoparticles of a second catalyst comprising noble metal. The sensing electrode in the sensor has been preconditioned by exposure under a positive voltage bias to a preconditioning gas comprising the contaminant(s) or their precursors or derivatives.