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. 12, 2010
Filed:
Jun. 03, 2004
Gary W. Ferrell, San Gregorio, CA (US);
Frances Ferrell, Legal Representative, San Gregorio, CA (US);
John F. Schipper, Palo Alto, CA (US);
Jagjit S. Ratra, Campbell, CA (US);
Gary W. Ferrell, San Gregorio, CA (US);
Frances Ferrell, legal representative, San Gregorio, CA (US);
John F. Schipper, Palo Alto, CA (US);
Jagjit S. Ratra, Campbell, CA (US);
SEZ America, Inc., Fremont, CA (US);
Abstract
Systems and methods for promoting a substantially uniform cavitation field. With system () including a diaphragm () dividing a container (), a second energy pulse corresponding to a first energy pulse arising from collapse of a cavity C is produced and is used to determine whether to adjust a corresponding transducer-. In system (), a cavity creating unit (), including an assembly of transducers-, is moveable from a test liquid to a particle removal (PR) liquid after transducer testing. In another system, a sensor plate () having an array of sensors-provides a virtual wafer. A substantially uniform field of cavitation may be maintained by a cavity enhancement liquid, or adjustment of transducer energy. Mechanisms of holding an object produce substantially uniform cavitation. Opposed transducers in a container having monotonically decreasing and/or increasing cavitation density produce substantially uniform cavitation density.