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:
Jan. 28, 2014
Filed:
Nov. 23, 2009
William J. Blickley, Scott Depot, WV (US);
Buddy L. Dearth, Houston, TX (US);
William J. Blickley, Scott Depot, WV (US);
Buddy L. Dearth, Houston, TX (US);
Univation Technologies, LLC, Houston, TX (US);
Abstract
A polymer finishing process including: recovering polymer powder from a polymerization reactor; feeding the polymer powder to an inlet of a mass flow screw conveyor and one or more mass measuring devices for determining a mass of polymer powder within at least a portion of the mass flow screw conveyor; measuring at least one of a mass of the polymer powder in the screw conveyor and a combined mass of the screw conveyor and the polymer powder within the screw conveyor with the one or more mass measuring devices; and determining a mass flowrate of polymer powder through the mass flow screw conveyor based on the at least one of the measured mass of the polymer powder in the mass flow screw conveyor and the measured combined mass. A method of controlling a polymerization process using a mass flow screw conveyor is also disclosed.