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:
Apr. 21, 1987
Filed:
May. 30, 1985
Applicant:
Inventors:
Jaime S Son, Houston, TX (US);
Philip C Lewellen, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28C / ; B01F / ;
U.S. Cl.
CPC ...
366343 ; 366 81 ; 366 89 ;
Abstract
A rotor element for use in extrusion and compounding machinery that incorporates means for mixing a low viscosity or immiscible additive with high viscosity base stocks such as polymer melts. The rotor incorporates a combination of one or more helical flights with an array of mixing pins arranged in the cylindrical screw root.