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:
May. 11, 1993
Filed:
Dec. 30, 1991
Applicant:
Inventors:
Robert J Miller, Niagara Falls, NY (US);
Michael R Resetarits, Depew, NY (US);
Daniel R Monkelbaan, Amherst, NY (US);
Assignee:
UOP, Des Plaines, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
2611141 ;
Abstract
The efficiency of multiple downcomer type fractionation trays is improved by the provision of an individual antipenetration pan located under each set of openings in the bottom of the box-like downcomers. The pans preferably comprise perforated planar sheets and have raised lips along two opposing edges to retard significant liquid runoff along the edges parallel to the downcomer end walls. The pans are parallel to the main tray surface and located intermediate the downcomers and the upper surface of the next lower tray.