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:
Oct. 13, 2009
Filed:
Sep. 25, 2003
Albrecht Haake, Zürich, CH;
Jürg Dual, Zumikon, CH;
Albrecht Haake, Zürich, CH;
Jürg Dual, Zumikon, CH;
Other;
Abstract
The invention covers the field of positioning of small particles () in a fluid (). Disclosed is a method by which small particles () are positioned by a sound field. For generating the sound field an apparatus contains a plate () excited to vibrations by a transducer () and a reflecting body with a rigid surface (). A mounting () holds the vibrating plate () and the transducer (). The particles will be concentrated at predetermined positions either at the rigid surface of the reflecting body () or levitating in the fluid (). Due to the fact that the sound waves are emitted by the vibrating plate particles can be positioned in entire area between the vibrating plate and the reflecting body.