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:
Sep. 03, 2002
Filed:
Sep. 26, 2000
Applicant:
Inventors:
Udo Setzer, Hirschberg, DE;
Bernhard Otto, Limburgerhof, DE;
Siegfried Bechtel, Lampertheim, DE;
Richard van Gelder, Ludwigshafen, DE;
Thomas Fetzer, Speyer, DE;
Joachim Borgwart, Ludwigshafen, DE;
Matthias Rauls, Limburgerhof, DE;
Christoph Gahn, Speyer, DE;
Assignee:
BASF Aktiengesellschaft, Ludwigshafen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 9/00 ;
U.S. Cl.
CPC ...
B01D 9/00 ;
Abstract
In a process and an apparatus for avoiding encrustations in reactors or crystallizers ( ), such as industrial crystallizers for suspensions ( ), points of incidence ( ) for the excitation of ultrasonic oscillations by sonotrodes ( ) which are connected to electromechanical converters ( ) are provided on the walls ( ) and on the base ( ) of the crystallizer ( ). The ultrasonic frequency is generated at high-frequency generators ( ).