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. 22, 1977
Filed:
Jul. 15, 1974
Applicant:
Inventors:
Wolfgang Berger, Erlangen, DT;
Hans Rottger, Weiher, DT;
Assignee:
Siemens Aktiengesellschaft, Munich, DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165162 ;
Abstract
A steam generator has an upstanding tube bundle radially enclosed by a vertical cylindrical wall, the tube bundle being centered within the wall by a tube spacer grid connected to the inside of the wall by keys and keyways which can slide vertically relative to each other, relieving the tube bundle and wall from mechanical stressing due to vertical thermal expansion and contraction causing relative vertical movement between the tube bundle and wall.