Measuring and testing – Miscellaneous
Patent
1976-08-02
1977-05-24
Queisser, Richard C.
Measuring and testing
Miscellaneous
73 67, G01N 1502, G01N 2900
Patent
active
040247686
ABSTRACT:
The average particle diameter and particle size distribution of hard particles in a bed are determined by causing impingement of the particles, e.g. by tumbling them, and recording and analyzing the beat pattern of the sound emanating from the particles as a result of such impingement.
REFERENCES:
patent: 3802271 (1974-04-01), Bertelson
patent: 3805591 (1974-04-01), Willis et al.
patent: 3842656 (1974-10-01), DiBattista
Leach Marcel Francis
Rubin Gottfried Adolf
Hirons Robert G.
Queisser Richard C.
Roskos Joseph W.
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