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:
Dec. 09, 1986
Filed:
Feb. 07, 1985
Applicant:
Inventors:
Philip M Rose, Naperville, IL (US);
Yoon S Song, Lisle, IL (US);
Assignee:
Standard Oil Company (Indiana), Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01F / ;
U.S. Cl.
CPC ...
366329 ; 366 81 ; 366320 ; 366321 ; 366327 ; 422135 ; 526 65 ;
Abstract
The double reverse helix agitator with an internal conveying screw is used in a gas phase olefin polymerization reactor having at least one polymerization section and has helical flights defined by helical blades which are mounted to a shaft, which extend in opposite axial directions and which have approximately the same radius from the axis of rotation of the agitator. The shaft has a spiral screw thread thereon for conveying polymer particles axially by the agitator through a reactor vessel.