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:
Jul. 18, 1989
Filed:
May. 11, 1988
Applicant:
Inventors:
Peter Brucher, Berlin, DE;
Helmut Lachmann, Berlin, DE;
Assignee:
Borsig GmbH, Berlin, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165160 ; 1651341 ;
Abstract
The gas-conveying pipes (8) of a heat exchanger employed to cool cracked gas are surrounded by and communicate with outer pipes (9). The outer pipes are welded into pipe slabs (4 and 5) and not only a convey a coolant but also secure the pipe slabs (4 and 5), which can accordingly by thin.