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:
May. 20, 2014
Filed:
Aug. 10, 2012
Klint A. Rose, Alviso, CA (US);
Karl A. Fisher, Brentwood, CA (US);
Douglas A. Wajda, Urbana, IL (US);
Raymond P. Mariella, Jr., Danville, CA (US);
Christopher Bailey, Pleasanton, CA (US);
Dietrich Dehlinger, Dublin, CA (US);
Maxim Shusteff, Oakland, CA (US);
Byoungsok Jung, Palo Alto, CA (US);
Kevin D. Ness, Pleasanton, CA (US);
Klint A. Rose, Alviso, CA (US);
Karl A. Fisher, Brentwood, CA (US);
Douglas A. Wajda, Urbana, IL (US);
Raymond P. Mariella, Jr., Danville, CA (US);
Christopher Bailey, Pleasanton, CA (US);
Dietrich Dehlinger, Dublin, CA (US);
Maxim Shusteff, Oakland, CA (US);
Byoungsok Jung, Palo Alto, CA (US);
Kevin D. Ness, Pleasanton, CA (US);
Lawrence Livermore National Security, LLC., Livermore, CA (US);
Abstract
An ultrasonic microfluidic system includes a separation channel for conveying a sample fluid containing small particles and large particles, flowing substantially parallel, adjacent to a recovery fluid, with which it is in contact. An acoustic transducer produces an ultrasound standing wave, that generates a pressure field having at least one node of minimum pressure amplitude. An acoustic extension structure is located proximate to said separation channel for positioning said acoustic node off center in said acoustic area and concentrating the large particles in said recovery fluid stream.