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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.:

US 10654210 B1

PDFFull Text
Date of Patent:
May. 19, 2020

Filed:

Mar. 26, 2018

Planetary roller extruder

Applicant:

Harald Rust, Bochum, DE;

Inventor:

Harald Rust, Bochum, DE;

Assignee:

Entex Rust & Mitschke GmbH, Bochum, DE;

Attorney:

Smartpat PLC

Primary Examiner:

David L Sorkin

Int. Cl.
CPC ...
B29C 48/44 (2019.01); B29C 48/425 (2019.01); B29C 48/435 (2019.01); B29C 48/505 (2019.01); B29C 48/585 (2019.01); B29C 48/68 (2019.01); B29C 48/685 (2019.01); B29C 48/80 (2019.01); B29B 7/48 (2006.01); B29C 48/395 (2019.01); B29C 48/25 (2019.01); B29C 48/625 (2019.01);
U.S. Cl.
CPC ...
B29C 48/425 (2019.02); B29B 7/485 (2013.01); B29B 7/487 (2013.01); B29B 7/488 (2013.01); B29C 48/25 (2019.02); B29C 48/2564 (2019.02); B29C 48/397 (2019.02); B29C 48/435 (2019.02); B29C 48/505 (2019.02); B29C 48/507 (2019.02); B29C 48/585 (2019.02); B29C 48/683 (2019.02); B29C 48/688 (2019.02); B29C 48/832 (2019.02); B29C 48/834 (2019.02); B29C 48/625 (2019.02);
Abstract

A planetary roller extruder includes a housing with an internal housing toothing. A central spindle is disposed in the housing and has an external central spindle toothing. A plurality of planetary spindles are disposed about the central spindle and in the housing. Each of the planetary spindles has an external planetary spindle toothing configured to mesh with the internal housing toothing and the external central spindle toothing. A drive is configured to rotate the central spindle. The drive includes a drive journal connected to the central spindle to permit transmission of a driving force from the drive to the central spindle. The drive journal includes a bore. The bore has internal projections configured to engage with the external central spindle toothing to secure the central spindle to the drive journal by a screw-type connection.

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