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. 10, 1981
Filed:
Jun. 12, 1978
Applicant:
Inventors:
Siegfried Forster, Ottenfeld, DE;
Manfred Kleemann, Quadrath, DE;
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165166 ;
Abstract
A heat exchanger element, especially of undulating or folded configuration aving an end closure thereon in the form of a band shaped in conformity with the heat exchanger element and sealingly connected thereto while the legs of the undulations of the band which face each other are also sealed together. In one form of the invention, the band is spaced from the end of the heat exchanger element and the open ends of the undulations are sealed as with solder.