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:
Oct. 14, 2003
Filed:
Mar. 31, 1999
P. Richard Warburton, Moon Township, PA (US);
Industrial Scientific Corporation, Oakdale, PA (US);
Abstract
A method for testing gas detection instruments includes providing at least two reagents, immobilizing at least one of the reagents into a matrix material, heating the matrix material until the matrix permits movement of the reagent and generating a gas responsive to chemical reaction between the reagents. The gas is introduced into the sensor portion of the gas detection instrument to test the same. The reagents may each be immobilized on the matrix material with the heating serving to soften or melt the matrix material to permit chemical interaction. In a preferred embodiment, the heating is effected at about 90 to 150° C. The method may be employed to generate carbon monoxide or other gases of interest. Corresponding apparatus is provided. The apparatus may be structured to be inserted into or receive the gas detection instrument or have its output in communication therewith.