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:
Mar. 31, 2020
Filed:
Jan. 11, 2018
Applicant:
Sumitomo Rubber Industries, Ltd., Kobe-shi, Hyogo, JP;
Inventor:
Shinichiro Honda, Kobe, JP;
Assignee:
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe-Shi, Hyogo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 48/15 (2019.01); B29C 48/25 (2019.01); B29C 48/49 (2019.01); B29C 48/30 (2019.01); B29C 48/305 (2019.01); B29C 48/08 (2019.01); B29L 30/00 (2006.01); B29K 105/24 (2006.01);
U.S. Cl.
CPC ...
B29C 48/30 (2019.02); B29C 48/08 (2019.02); B29C 48/15 (2019.02); B29C 48/267 (2019.02); B29C 48/307 (2019.02); B29C 48/49 (2019.02); B29K 2105/246 (2013.01); B29L 2030/002 (2013.01);
Abstract
A rubber extruding machinecomprises two or more rubber extruders, an extrusion headto which the rubber extrudersare connected, and a decompression device. A pre-formerof the extrusion head comprises: rubber flow pathsincluding respective flow pathsthrough which the extruded unvulcanized rubber compounds G pass respectively; a merging position P at which the rubber flow pathsare confluent; and a vent channelwhose one end communicates with the merging position P and the other end is connected to the decompression device.