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:
Mar. 01, 2005
Filed:
Jun. 23, 2000
Applicants:
Ferdinand Finkeldei, Frankfurt am Main, DE;
Walter Schnaus, Rodenbach, DE;
Inventors:
Ferdinand Finkeldei, Frankfurt am Main, DE;
Walter Schnaus, Rodenbach, DE;
Assignee:
Lurgi Zimmer AG, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B08B003/00 ; B08B003/04 ; F16K051/00 ;
U.S. Cl.
CPC ...
Abstract
Method of cleaning valves or lines through which hydrolysable polymers are transported at the operating temperature, in which, after the polymer stream has been shut off and the polymer has been evacuated as far as possible, steam is passed through the valves or lines to be cleaned while the operating temperature is maintained at plus/minus 10° C., with the steam being introduced via hydrolysis valves set in the wall of the valve housing or the lines and discharged via emptying apertures.