Patent ID: 8122753
Filing Date: 2012-02-28
Classification: G01N,G05D,Y10T

Abstract:
1. A portable metered flow apparatus for accurately providing calibration gas from a calibration gas source to a gas monitoring instrument in order to permit calibration/bump testing of the instrument, the apparatus comprising: A. a regulator having two opposing ends, a hollow passageway that extends axially through the regulator between the two opposing ends, the first end of the regulator including a regulator inlet and the opposing end of the regulator including a regulator outlet, and a means for regulating pressure located in the hollow passageway between the regulator inlet and the regulator outlet, the regulator inlet allowing for connection of the regulator to the calibration gas source and passage of the calibration gas into the regulator, B. a gas delivery device comprising a hollow case having a case inlet and a case outlet and having disposed within said case: