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:
Jan. 09, 1990
Filed:
Sep. 20, 1988
Motonori Yanagi, Itami, JP;
Masaharu Hama, Itami, JP;
Nobuyoshi Hattori, Itami, JP;
Takaaki Fukumoto, Itami, JP;
Abstract
An apparatus for counting particles attached to surfaces of a solid is disclosed which includes an external tank, an internal tank disposed within the external tank for hermetically accommodating a measuring liquid into which a sample having particles attached to the surfaces thereof is to be immersed, a driving mechanism for rotating the internal tank with respect to the external tank, sonic wave generators provided on the external tank for generating sonic waves having a plurality of different frequencies toward the internal tank, and a measuring mechanism connectable to the internal tank in a hermetic fashion for counting the number of particles in the measuring liquid removed from the sample by the sonic waves generated from the sonic wave generators.