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:
Mar. 25, 2014
Filed:
Oct. 03, 2011
Dieter Kita, Blackstone, MA (US);
Yongquan LI, Schenectady, NY (US);
Jeffrey Socha, Boylston, MA (US);
Bryan A. Marcotte, Blackstone, MA (US);
Dieter Kita, Blackstone, MA (US);
Yongquan Li, Schenectady, NY (US);
Jeffrey Socha, Boylston, MA (US);
Bryan A. Marcotte, Blackstone, MA (US);
Thermo Fisher Scientific Inc., Waltham, MA (US);
Abstract
Configurations herein include a novel process and apparatus for generating and maintaining sulfur trioxide gas. The generation system and process operate to provide sulfur trioxide calibration gas for calibrating sulfur trioxide detection devices. The system and process provides a known, concentration of sulfur trioxide gas via a heated catalyst, which enables accurate calibration of measurement equipment. The system functions in part by controlling temperature, amount of moisture, residence time, catalyst selection, diluting generated sulfur trioxide and by locating the sulfur trioxide generator at a point of injection of a sulfur trioxide detection system.