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, 2012
Filed:
Apr. 30, 2009
Phillip F. Daly, Des Plaines, IL (US);
Steven P. Lankton, Des Plaines, IL (US);
Raymond E. Tucker, Tonawanda, NY (US);
Phillip F. Daly, Des Plaines, IL (US);
Steven P. Lankton, Des Plaines, IL (US);
Raymond E. Tucker, Tonawanda, NY (US);
UOP LLC, Des Plaines, IL (US);
Abstract
Improvements in tubes, which increase the heat exchange capacity of tubular heat exchangers using the tubes, are described. These improvements involve the use of one or more external surface enhancements, optionally combined with an internal enhancement and/or differing tube geometries. These improvements apply, for example, to internal condensers, including those in which the tube bundles are oriented vertically, in vapor-liquid contacting apparatuses such as distillation columns.