Constant pressure sample cylinder with spheroid mixer

Details Constant pressure sample cylinder with spheroid mixer Constant pressure sample cylinder with spheroid mixer

1988-09-12

1990-05-08

Noland, Tom

Measuring and testing

Sampler, sample handling, etc.

Capture device

73863, 7386491, 73DIG5, G01N 110

Patent

active

049227645

ABSTRACT:
A constant pressure cylinder with a spheroid or ellipsoid mixer is disclosed herein. Improvements include a spheroid or ellipsoid mixing element for mixing the accumulated sample. The mixing element is free to move about the sample chamber but is consturcted in such a way to avoid damage to the interior cylinder walll. Other generally ellipsoid shaped mixing elements are also disclosed. The invention additionally incorporates an improved piston for use in the cylinder. The piston contains a magnet assembly which may be used in conjunction with an invention by a third party to visually display the location of the piston in the cylinder.

REFERENCES:
patent: 3390580 (1968-07-01), Taylor
patent: 3789670 (1974-02-01), Rosenwald
patent: 3793886 (1974-02-01), Rosenwald
patent: 3793888 (1974-02-01), Rosenwald
patent: 4149411 (1979-04-01), Fisher et al.
patent: 4302158 (1981-11-01), Brown
patent: 4363300 (1982-12-01), Honda
patent: 4409850 (1983-10-01), Zeck
patent: 4457171 (1984-07-01), Grebauer
patent: 4459865 (1984-07-01), Welker
patent: 4628750 (1986-12-01), Welker

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