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.

Date of Patent:
Dec. 15, 1981

Filed:

Jan. 23, 1980
Applicant:
Inventors:

Manfred Nonnenmann, Schwieberdingen, DE;

Helmut Bardong, Stuttgart, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165173 ; 291574 ; 29523 ; 285222 ; 2853824 ;
Abstract

A passage is provided in a heat exchanger water compartment to permit extension of a tube therethrough and at the same time assist in sealing the tube and passage interface. The distance between the intersection of the lower bottom edge of the water compartment bottom part with the inner edge of the passage and the intersection of the horizontal extension of the upper edge of the bottom part in the direction of the passage extension has a positive value.


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