Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1980-12-30
1982-04-27
Swisher, S. Clement
Measuring and testing
Sampler, sample handling, etc.
Capture device
G01N 112
Patent
active
043264271
ABSTRACT:
A liquid-sampling gauge for obtaining a sample of liquid (e.g. water) from on or near the bottom of a liquid-filled container having one or more layers of liquid therein (e.g. a crude oil or other refined oil-filled cargo tank) and for determining the depth of the bottom layer (e.g. water) in the container. The gauge is comprised of a cylinder which is effectively open at its upper end and closed at its lower end. A spring-biased valve normally closes an inlet opening through the lower end of the cylinder. The sampling apparatus may be used with either the cylinder initially empty or filled with a fluid such as water. If the cylinder was initially empty it fills with fluid, e.g. oil, through its open upper end as it is lowered into the liquid-filled container. As the cylinder reaches bottom, a valve actuator on the cylinder engages the bottom of the container and continued downward movement of the cylinder opens the valve which allows displacement activity to occur. Flow will continue until the interface level inside the cylinder equals the level of the water layer in the container. Upon lifting of the cylinder, the spring-biased valve closes thereby trapping the water in the cylinder for retrieval, measurement and analysis.
REFERENCES:
patent: 2203019 (1940-06-01), Johnson et al.
patent: 2678563 (1954-05-01), Parrish
Gilman Michael G.
Huggett Charles A.
Mobil Oil Corporation
Powers, Jr. James F.
Swisher S. Clement
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