Measuring and testing – Instrument proving or calibrating – Gas or liquid analyzer
Reexamination Certificate
2007-10-16
2007-10-16
Raevis, Robert (Department: 2856)
Measuring and testing
Instrument proving or calibrating
Gas or liquid analyzer
C073S001030
Reexamination Certificate
active
10989266
ABSTRACT:
An apparatus for providing a test gas to a gas monitoring instrument having a window for admitting gas to a gas sensor therein, is formed from a mechanical adaptor open at a portion thereof and having walls constructed and arranged such that the mechanical adaptor removably fits over the window to form a substantially gas tight chamber of predefined volume defined by the walls of the mechanical adaptor and the instrument, means disposed in the mechanical adaptor for receiving a vial of test gas and breaking a seal in the vial to admit the test gas to the chamber. The invention is also directed to a kit including the vial of test gas, and a method for testing a gas detection instrument utilizing the apparatus and a vial of test gas.
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Cunningham Thomas M.
Peng Wenfeng
Dennison, Schultz & Macdonald
Industrial Scientific Corporation
Raevis Robert
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