Measuring and testing – Sampler – sample handling – etc. – Analyzer supplier
Patent
1995-09-11
1996-11-26
Raevis, Robert
Measuring and testing
Sampler, sample handling, etc.
Analyzer supplier
7386384, 7386462, G01N 3122
Patent
active
055787703
ABSTRACT:
An apparatus and method for use in conjunction with a Drager tube for the simultaneous testing and storage of a particular gas from a source and the subsequent flaring of the gas after testing is set forth herein. The apparatus generally includes a sample cylinder having two heads closing a chamber with an internal piston delineating two variable volume spaces therein. The front head is threaded to and in selective communication with, by means of valves disposed within channels, a supply line connected to a gas source, a test line with the Drager tube, and an exhaust line coupled to a flare line. The rear head is threaded to and in selective communication with, by valves disposed within channels, the test shaft and the exhaust line. The gas enters into the first variable volume space when the valve on the supply line is opened. When the valve located on the front head in communication with the exhaust line is opened, the system can be purged of foreign material by repeatedly filling the first variable volume space and then opening the valve. When the first variable volume space is again full, the pair of valves leading to the test line are opened, and the gas passes through the test line and into the second variable volume space, where it is temporarily stored. When the valve leading to the exhaust line is opened, the gas exits the second variable volume space and is flared.
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patent: 5379654 (1995-01-01), Carvajal et al.
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Raevis Robert
Welker Engineering Company
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