Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent
1989-11-27
1991-10-29
Raevis, Robert
Measuring and testing
Sampler, sample handling, etc.
Capture device
73DIG9, G01N 112
Patent
active
050605305
ABSTRACT:
A holder for a molten metal sampling device includes a pipe having a guidance chamber in a lower portion and a molten metal sampling device in an upper portion. The pipe is open downwardly and a closure element closes the opening. The closure element has a density such as to cause it to float upwardly in the molten metal being samples. A protective cover, preferably of two parts, encloses the closure element and a lower portion of the pipe. A retaining device such as a spring clip holds the separate parts of the protective cover together around the closure element and the lower part of the pipe. The retaining device is adapted to fail upon contact with the molten metal, thus releasing the portions of the protective cover so that they will separate and float upwards, whereupon the closure element also separates and floats away, allowing molten metal into the guidance chamber and the sampling device. The pipe and the closure element are both cylindrical and coaxial, and have substantially the same diameter. The closure element further has an outwardly projecting circumferential ledge remote from the pipe. The protective cover includes two similar halves constituting the parts, each half having a semicylindrical side wall of which one end lies juxtaposed against the ledge.
REFERENCES:
patent: 3452602 (1969-07-01), Hackett
patent: 3877309 (1975-04-01), Hanle
patent: 4067242 (1978-01-01), Judge
patent: 4211117 (1980-07-01), Cure
patent: 4941364 (1990-07-01), Haughton
Evacuo Enterprises Limited
Raevis Robert
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