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. 29, 2019
Filed:
Mar. 24, 2015
Thonhauser Gmbh, Giesshuebl, AT;
Daniel Herzog, Purkersdorf, AT;
Philip Thonhauser, Giesshuebl, AT;
Thonhauser GmbH, Giessheubl, AT;
Abstract
A method is provided for cleaning a system by conducting continuously through the system a cleaning composition including at least one oxidizing agent and an indicator for detecting the cleanliness of the system by observation of a color change of the indicator. Color values are determined at one or more points and compared with a setpoint value. Color values F are determined at fixed time intervals after exit of the composition from the system; differences ΔF are formed from two color successive values; color values are determined before commissioning of the clean system until the difference ΔF=0, after which the color value measured last is defined as an inherent system value Fand a maximum tolerable deviation from this value is fixed as a setpoint value ΔFfor cleaning; and cleaning of the system is carried out after operation of the system until a difference of ≤ΔFis measured.