Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Carbon dioxide or hydrogen sulfide component
Reexamination Certificate
2009-05-11
2011-11-08
Mayes, Melvin (Department: 1732)
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Carbon dioxide or hydrogen sulfide component
C422S094000, C436S008000
Reexamination Certificate
active
08052949
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.
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Kita Dieter
Li Yongquan
Marcotte Bryan A.
Socha Jeffrey
Chapin IP Law LLC
Chapin, Esq. Barry W.
Davis Sheng H
Mayes Melvin
Thermo Fisher Scientific Inc.
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