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:
Sep. 27, 1977
Filed:
May. 10, 1976
Applicant:
Inventors:
Bennie I Bunas, Chicago, IL (US);
Kenneth D Uitti, Bensenville, IL (US);
Assignee:
UOP Inc., Des Plaines, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
261109 ; 202158 ; 2611 / ;
Abstract
A sieve-type fractionation tray which has been adjusted for operation at a reduced vapor flow rate. Adjustment is achieved by placing an imperforate plate across the vapor passageways in a manner which selectively seals the passageways located nearest the outlet downcomer. Also a sieve-type fractionation tray having vapor passageways only on the liquid receiving lateral half of the tray.