The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 21, 1995
Filed:
Sep. 23, 1993
Haruo Shimaoka, Nara, JP;
Shimadzu Corporation, Kyoto, JP;
Abstract
A method and apparatus which measures a particle size distribution of each content of powdery contents. Particle size distributions of a plurality of mixtures are calculated by blending the contents in various proportions, referring to the previously measured particle size distribution of each content, then determining the relationship between particular particle sizes in the plurality of particle size distributions and a mixing proportion. A particle size distribution of a mixture blended with the contents is measured, finding the particular particle size in the previously calculated particle size distributions of the mixture, and an actual mixing proportion of the contents in the mixture is estimated from the found particle size and the relations previously determined.