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:
Jul. 08, 2003
Filed:
May. 07, 2001
Applicant:
Inventors:
Ulrich Nerreter, Nuremberg, DE;
Meike Pielach, Erlangen, DE;
Assignee:
Siemens Aktiengesellschaft, Münich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 1/50 ;
U.S. Cl.
CPC ...
C02F 1/50 ;
Abstract
In a method for giving a biocidal property to a coolant in a fluid cooling circulation, the fluid cooling circulation has at least one device that exhibits at least one metal oxide that is in contact with the coolant, the coolant has a substance added to it that causes an acidic pH value of the coolant, at least for a time, and as a result of the acidic pH value of the coolant, metal ions are released from the metal oxide, these metal ions giving the coolant the biocidal property.