Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1984-09-27
1986-12-16
Levy, Stewart J.
Measuring and testing
Sampler, sample handling, etc.
Capture device
7386371, 7386434, 7386462, G01N 114
Patent
active
046287507
ABSTRACT:
An integrated pump and sample vessel which eliminates dead volume between the point of collection of the sample and the sample vessel. The pump has a body with a longitudinal bore therethrough, a fluid flow passage in the body which allows fluid to enter and exit the pump, a resilient member located in the bore which has a face with a cavity therein exposed to the fluid flow passage and a sleeve which confines the resilient member. A sample vessel is adapted to be detachably mounted to the pump body with a face exposed to the fluid flow passage. A check valve is located in the sample vessel to selectively enable the entry of fluid from the flow passage of the pump. In the preferred embodiment, the check valve is located in an easily removable pod to facilitate service or adjustment. A diaphragm motor or other moving apparatus drives the face of the resilient member into contact with the face of an adapter or the face of the sample vessel which traps a sample of fluid in the cavity. The moving apparatus applies greater pressure and resiliently collapses the cavity which pumps sample past the check valve into the sample vessel.
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Welker Engineering Company Publication; By Jun. 1979.
"Proper Sampling Key to Measuring Mixes of Light Hydrocarbons"; The Oil and Gas Journal, pp. 204, 207, and 209; Sep. 19, 1977; N. Broussard.
"Techniques of Gas Sampling" pp. 48-68; article by Charles F. Drake of Natural Gas Pipeline Company of America et al.; published between Mar. 1979 and May 1986.
Levy Stewart J.
Noland Tom
Welker Engineering Company
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