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:
Nov. 07, 2023
Filed:
Nov. 06, 2019
Nakata Engineering Co., Ltd., Hyogo, JP;
Takeshi Hashimoto, Kobe, JP;
Nakata Engineering Co., Ltd., Hyogo, JP;
Abstract
Provided is a head for a multi-layer extrusion device which can be easily and accurately adjusted to a change in size of an extruder and a change in extrusion shape. A headfor a multi-layer extrusion device is provided with a plurality of flow paths for separately guiding elastomer materials G from a plurality of extrudersto a pre-former attachment unit. The headcomprises: a main headto which each extruderis connected; an upper head partpositioned above the main head; and a lower head partpositioned below the main head. The plurality of extrudersinclude a first extruderand a second extruder. The main headis detachably divided into at least: a first head partto which the first extruderis connected; a second head partto which the second extruderis connected; a third head partconnected to the first head parton the downstream side of the first head part; and a fourth head partconnected to the second head parton the downstream side of the second head part