Measuring and testing – Sampler – sample handling – etc. – Conduit or passageway section capture chamber
Patent
1992-09-04
1994-08-09
Noland, Tom
Measuring and testing
Sampler, sample handling, etc.
Conduit or passageway section capture chamber
7386361, 7386386, 436174, G01N 118, G01N 128
Patent
active
RE0346870
ABSTRACT:
A constant volume sampling system is provided, comprising a sample loop including a section of tubing having a predetermined volume and having a first end and a second end; a first valve having a first port, connectable to a process line at a first point, a second port connected to the first end of the sample loop, a third port, connectable to a pressurized gas line, and a selector for selectively establishing flow between the first and second ports or between the second and third ports; a second valve having a first port, connectable to the process line at a second point wherein a pressure differential exists in the process line between the first point and the second point, a second port, connected to the second end of the sample loop, a third port, connectable to a sample container, and a selector for selectively establishing flow between the first and second ports or between the second and third ports; an actuator, for operating the first valve and the second valve; and a linkage, for linking the actuator and the first and second valves such that the actuator operates the first and second valves simultaneously, the linkage being operably connected externally of the sample loop to the first valve, the second valve and the actuator. A method is provided for operating the system so as to neutralize a hazardous sample as it is taken by placing a neutralizing substance in the sample container before the sample is taken.
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Delaune, Jr. Warner J.
Kiesel William David
Noland Tom
Tucker Robert C.
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