Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1985-03-22
1986-02-11
Swisher, S. Clement
Measuring and testing
Sampler, sample handling, etc.
Capture device
G01N 112
Patent
active
045692386
ABSTRACT:
A multi-layer liquid sampler in which one side of the length of a non-sparking plate is fastened to a submersing rod. The other side is fastened to top and bottom of tube holders that contain a transparent glass or plastic tube. That tube is kept in a prepositioned attitude in relationship to the tube by means of a plastic positioner ring with circular openings for the tube and two legs of a non-sparking metal rod that is bent into a "U" shape. The bottom of the "U" is bent forward and flattened slightly to become the ledge of a closure. The other piece of the closure is a beryllium copper spring that is fastened at one end in close relationship with the bottom holder and non-sparking plate. A number of non-sparking metal screwheads and nuts are on the bottom and a plastic cone fastened to the spring and located under the transparent tube. This cone seals the bottom of the tube by contact between the tube and cone about two-thirds of the distance down the cone. A string attaches to the end of the spring allowing samples to be taken at any depth in the tank or storage container. One of the non-sparking metal screws on the bottom of the beryllium copper spring is a touching screw that has the purpose of touching the bottom first and closing the spring onto the flattened forward bending "U" of the rod when a string is not used for closure. This sampler enters the storage tank in an open position and thus allows any liquids which have layered to pass through the sampler and be trapped. This could not be achieved if the sampler only opened and closed upon contact with the bottom of the tank if there were more than two layers present.
REFERENCES:
patent: 2580711 (1952-01-01), Weidinger
patent: 2634612 (1953-04-01), Quist
patent: 4346519 (1982-08-01), Milo
Roberts Edward E.
Swisher S. Clement
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