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:
Oct. 31, 2023
Filed:
Nov. 29, 2018
Harburg-freudenberger Maschinenbau Gmbh, Hamburg, DE;
Steffen Alfes, Freudenberg, DE;
Petra Noelling, Niederfischbach, DE;
Maik Rinker, Gummersbach, DE;
Harald Keuter, Freudenberg, DE;
Markus Hesse, Freudenberg, DE;
Andreas Limper, Freudenberg, DE;
Harburg-Freudenberger Maschinebau GmbH, Hamburg, DE;
Abstract
An internal mixer includes a mixing chamber enclosed by a housing, a feeding neck in which a ram is guided, a closable discharge door, and an intermeshing rotor system, composed of a pair of rotors that can each be rotated about a rotor longitudinal axis, each rotor comprising a rotor main body on which at least one respective rotor blade is arranged, and the rotor blades of the two rotors meshing with one another, is to be refined in such a way that an improved, that is, faster, pull-in behavior is achieved, while optimizing the dispersion and distribution of the introduced materials. To this end, it is provided that in the case of at least one of the rotors, the rotor main body, at least in sub-regions, is non-cylindrical and has a non-circular cross-section, in the surface sections in which no rotor blades are arranged on the rotor main body.