Measuring and testing – Sampler – sample handling – etc. – Analyzer supplier
Patent
1988-11-16
1990-06-19
Raevis, Robert
Measuring and testing
Sampler, sample handling, etc.
Analyzer supplier
7386311, 7386354, G01N 100
Patent
active
049342010
ABSTRACT:
A method and apparatus for removing samples from a plastic melt for measuring the rheological properties of the plastic melt in which melt samples are removed from melt in a melt channel through a hollow probe arranged transversely of the direction of flow of the melt, the probe having an opening for the inlet of the melt samples. The probe is elongated and is displaceable along its axis in a direction transverse of the melt channel while being rotatable around its axis so that the inlet in the probe can be placed in various positions in the melt cross section. The opening of the probe is disposed at the periphery of a circle lying in a radial plane around the longitudinal axis whereby samples can be obtained in a three-dimensionally extending region.
REFERENCES:
patent: 2641934 (1953-06-01), Werts
patent: 2780094 (1957-02-01), Fink
patent: 3138950 (1964-06-01), Welty et al.
patent: 3276264 (1966-10-01), Banks
patent: 3595087 (1971-07-01), Starks
patent: 3831452 (1974-08-01), Pittenger
patent: 3885437 (1975-05-01), Reagan
patent: 4433587 (1984-02-01), Risdal
patent: 4479393 (1984-10-01), Shores
Grimminger Albert
Herrmann Heinz
Muller Franz J.
Nettelnbreker Hans-Jurgen
Stohrer Bernhard
Raevis Robert
Werner & Pfleiderer GmbH
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