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. 01, 2000
Filed:
Mar. 24, 1999
Applicant:
Inventors:
Thomas C Heldwein, Lockport, NY (US);
Nicholas F Urbanski, De Pew, NY (US);
Aaron J Muck, Clarence, NY (US);
Michael R Resetarits, De Pew, NY (US);
Assignee:
UOP LLC, Des Plaines, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
2611145 ; 202158 ;
Abstract
A novel fractionation column (1) internal structure consists of bundles of fractionation trays in which each upper tray rests upon the next lower tray. Only the lowermost tray of the bundle is supported by the column wall. Preferably the downcomers (13) of the upper tray rest upon the tops of the downcomers (13) of the next lower tray. The two crescent-shaped terminal decking sections (19) on opposite edges of the tray are supported from below by arch-shaped structures (17) anchored to the next lower tray.