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. 25, 2007
Filed:
Apr. 11, 2005
Masahiko Ohki, Kobe, JP;
Isao Ohiwa, Kobe, JP;
Masahiko Ohki, Kobe, JP;
Isao Ohiwa, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe-shi, JP;
Abstract
An apparatus for manufacturing a strip of rubber compounds comprises four extruders () and a single extruder head (). The extruder head () comprises an extruder die assembly () and a main body (). The main body () is composed of a pair of laterally-spaced lateral blocks (), a central block () disposed between the lateral blocks, and a pair of laterally-spaced sub blocks () disposed beneath the lateral blocks (). The central block () has a pair of V-form side faces () extending in a V-shaped formation down to lateral ends of the bottom face (S). The lateral blocks () are each provided with an upper mount face (U) and a lower mount face (L) on which two of the four extruders are respectively attached. An upper preforming channel (Ua,Ub) extending from an extruder to the die assembly has a parting plane along the V-form side face (). A lower preforming channel (Lc,Ld) extending from an extruder to the die assembly also has a parting plane.