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. 14, 1996
Filed:
Jan. 12, 1995
Applicant:
Inventors:
Norimasa Oda, Hiroshima, JP;
Minoru Yoshida, Hiroshima, JP;
Hideki Mizuguchi, Hiroshima, JP;
Katsumi Sumioda, Hiroshima, JP;
Assignee:
The Japan Steel Works, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28C / ;
U.S. Cl.
CPC ...
366 75 ; 306 85 ; 306300 ; 306301 ;
Abstract
A twin extruder has a material supplying section, a conveying section, a kneading section, a degassing section, and a discharging section. In the conveying section and the neading section, a plurality of grooves are formed in each of two walls arcuate in cross section of a cylinder which define an internal hole in the cylinder, and/or a cut is formed at each of the junctions of the walls of the cylinder.