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. 19, 1983
Filed:
Mar. 17, 1981
John L Searle, Camden, NJ (US);
Honeywell Inc., Minneapolis, MN (US);
Abstract
A combustible gas analyzer for determining the calorific content of a combustible gas uses a constant flow rate air supply and a constant pressure combustible gas supply to provide oxygen and gas for combustion. The regulated air is supplied directly to be mixed with the combustible gas. On the other hand, the combustible gas is passed through a series connection of a pressure regulator and a variable orifice or valve before mixing with the air supply. A feedback pressure to control the pressure regulator for the gas is obtained from the output of the valve. The mixture of air and gas is burned in a combustion chamber, and a zirconium oxide detector is arranged to measure the oxygen content of the combustion products to enable a predetermined oxygen level to be reached, e.g., stoichiometric combustion. The valve is operated by a valve control apparatus responsive to the output of the detector to maintain the preset oxygen level. The position of the valve is monitored as a representation of the calorific content of the combustible gas.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile