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:
Aug. 29, 2023
Filed:
Nov. 25, 2020
Applicant:
Engel Austria Gmbh, Schwertberg, AT;
Inventors:
Guenther Klammer, Aschbach Markt, AT;
Erich Hochreiter, Schwertberg, AT;
Klaus Fellner, Steyr, AT;
Thomas Koepplmayr, Linz, AT;
Assignee:
ENGEL AUSTRIA GMBH, Schwertberg, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 45/77 (2006.01); B29C 45/18 (2006.01); B29C 45/47 (2006.01); B29C 45/50 (2006.01);
U.S. Cl.
CPC ...
B29C 45/77 (2013.01); B29C 45/1808 (2013.01); B29C 45/47 (2013.01); B29C 45/50 (2013.01); B29C 2945/76006 (2013.01); B29C 2945/7619 (2013.01); B29C 2945/76083 (2013.01); B29C 2945/76354 (2013.01); B29C 2945/76367 (2013.01); B29C 2945/76454 (2013.01); B29C 2945/76461 (2013.01); B29C 2945/76474 (2013.01); B29C 2945/76498 (2013.01); B29C 2945/76568 (2013.01); B29C 2945/76598 (2013.01); B29C 2945/76665 (2013.01); B29C 2945/76832 (2013.01); B29C 2945/76846 (2013.01); B29C 2945/76936 (2013.01);
Abstract
A method of influencing a backpressure length and/or a screw return speed in an axially extending plasticizing cylinder of a plasticizing unit for an injection moulding machine including a plasticizing screw arranged displaceably and rotatably in a cylinder bore of the plasticizing cylinder. Metering of plastic granulate fed to the plasticizing unit is carried out in dependence on the desired backpressure length in the plasticizing unit, and the plasticizing unit is operated in underfed mode.