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:
Apr. 03, 2007
Filed:
May. 10, 2002
Sasan Habibi-naini, Aachen, DE;
Oliver Pfannschmidt, Bad Oeynhausen, DE;
Christian Schlummer, Freiburg, DE;
Sasan Habibi-Naini, Aachen, DE;
Oliver Pfannschmidt, Bad Oeynhausen, DE;
Christian Schlummer, Freiburg, DE;
Peguform GmbH, Bötzingen, DE;
Abstract
The injection molding machine comprises a screw plunger (), which rotates inside an injection unit (), wherein the screw plunger () has, downstream from a metering zone a porous or permeable section () which can be charged with a physical expanding agent via an expanding agent feed device () in the screw shaft of the screw plunger () and which two-dimensionally introduces the expanding agent into the melt flow for molding of foamed shaped parts made of polymeric materials in an injection molding machine by an injection molding method.