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:
Jun. 12, 1990
Filed:
Mar. 20, 1989
Applicant:
Inventor:
Hermann Gemeinhardt, Obernburg, DE;
Assignee:
Akzo N.V., Arnhem, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165158 ; 2103218 ; 21032189 ;
Abstract
An apparatus for transferring mass and/or heat comprising a casing, at least two tube sheets and a plurality of tubes. The tubes are connected with the tube sheets and the tube sheets are formed such that they are arranged partly in openings provided in the casing and partly outside the casing, overlapping the casing openings. A seal is disposed between sheets and casing inside and outside the casing openings and the tube sheet has been fabricated by casting onto the casing.