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. 24, 2019
Filed:
Nov. 09, 2015
Kraussmaffei Berstorff Gmbh, Hannover, DE;
Klaus Hahn, Ronnenberg, DE;
Harald Hepke, Hannover, DE;
KraussMaffei Berstorff GmbH, Hannover, DE;
Abstract
The invention relates to a multiple extrusion press head for producing tread profiles of tyres, comprising: a base body () having a first supply opening () for connecting a first extruder, a second supply opening () for connecting a second extruder, a third supply opening () for connecting a third extruder, and a fourth supply opening for connecting a fourth extruder; a first head part () which is mounted such that it can swivel in relation to the base body, and which has a receiving means () that is open in the direction of the base body (); a second head part that is mounted such that it can swivel in relation to the base body (); at least one flow channel insert () that is mounted such that it can swivel in relation to the base body (), wherein the first head part () and the second head part () can be brought into a closed state, in which the head parts () are connected to one another in a pressure-tight manner, and a first flow channel (), a second flow channel (), a third flow channel () and a fourth flow channel () are formed in the multiple extrusion press head (), wherein every flow channel is connected to a supply opening. According to the invention, the base body () has a fifth supply opening () for connecting a fifth extruder, and the multiple extrusion press head () has a second flow channel insert (), which, independently of the first flow channel insert (), is mounted such that it can swivel in relation to the base body (), and borders a fifth flow channel () that is connected to the fifth supply opening ().