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:
Aug. 09, 1988
Filed:
Apr. 03, 1986
Applicant:
Inventor:
Ulrich Dummler, Marxzell, DE;
Assignee:
GEA Wiegand GmbH, , DE;
Primary Examiner:
Int. Cl.
CPC ...
F23D / ;
U.S. Cl.
CPC ...
165-1 ; 165141 ; 165146 ; 165154 ; 422308 ;
Abstract
A process and apparatus for heating a liquid in at least one vertically disposed externally heated tube on the inner surface of which the liquid flows in the form of a trickling film, characterized in that the internal space of the tube is kept under a gas pressure which is higher than the vapor pressure of the liquid in the trickling film.