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:
Jun. 16, 1998
Filed:
Feb. 11, 1997
Gary D Keil, Elmwood, IL (US);
Ronald G Morgan, East Peoria, IL (US);
Sheryl A Tipton, East Peoria, IL (US);
Wayne A Supak, Washington, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A process for automated measurement of ammonia in a gas mixture containing ammonia gas and one or more water-insoluble gases includes providing a water reservoir adapted for supplying water therefrom through a first solenoid valve and providing a measurement vessel adapted for receiving water. The vessel is adapted for draining the water therefrom through a second solenoid valve. The vessel is also adapted for receiving the gas mixture through a third solenoid valve and purging the gas mixture from the vessel through a fourth solenoid valve. The vessel is adapted for maintaining the gas in the vessel and receiving water thereinto in an amount sufficient to dissolve the ammonia gas contained in the gas mixture, into the water, and allowing a differential pressure between the gas mixture and the water containing dissolved ammonia to be measured. The process also includes providing a measurement vessel adapted for allowing height of water within the vessel to be measured, providing means for measuring height of water within measurement vessel, and providing recording means for converting the measured height signal to an ammonia concentration value.