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:
Jan. 19, 2021
Filed:
Jun. 21, 2017
Robert Bosch Gmbh, Stuttgart, DE;
Antonius Gress, Ornbau, DE;
Hendrik Jahnle, Leutenbach, DE;
Jan Tremel, Erlangen, DE;
Markus Feigl, Markgroeningen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
Extruder () for a 3D printer, comprising at least one outer nozzle () and a conveying worm () for feeding liquid and/or plasticized starting material () into the interior chamber () of the outer nozzle (), wherein an inner nozzle () is arranged in the interior chamber () of the outer nozzle (), wherein the interior chamber () of the inner nozzle () is connected to the interior chamber () of the outer nozzle () via at least one duct () which is continuous for the starting material (), and wherein the inner nozzle () is mounted such that it can be moved linearly along the longitudinal axis () of the outer nozzle (). A 3D printer () having the extruder () and means () for generating a relative movement between the extruder () and a construction surface (), on which the object () to be manufactured is produced.