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. 28, 2000
Filed:
May. 07, 1998
Applicant:
Inventors:
Rainer Kunz, Nurnberg, DE;
Hermann Operschall, Lauf, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Primary Examiner:
Int. Cl.
CPC ...
B07B / ;
U.S. Cl.
CPC ...
294031 ; 29890031 ;
Abstract
A method for disposing of a radioactively contaminated steam generator with a multiplicity of U-shaped heating tubes fixed in a tube plate, includes cutting off the heating tubes above the tube plate, cutting open the dome of the steam generator and gripping the heating tubes one after the other at the U-bend with force-locking measures. Once gripped, each heating tube is drawn through crushing rollers to achieve an initial reduction in size and to reduce a bend radius of the tube and is then passed into a press where it is pressed flat.