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. 18, 2006
Filed:
Apr. 14, 2003
Applicants:
Erwin Bürkle, Benediktbeuern, DE;
Hans Wobbe, Herrsching, DE;
Walter Wohlrab, Weissenburg, DE;
Inventors:
Assignee:
Krauss-Maffei Kunststofftechnik GmbH, München, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C 45/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
An injection molding device includes a continuously operating extruder and a discontinuously operating injection unit receiving plastic material from the extruder. The extruder has an extruder barrel which includes a plasticizing zone and a discharge zone, whereby the discharge zone is configured to provide an intermediate storage space and has a cross sectional area which is greater than a cross sectional area of the plasticizing zone. In this way, the discharge zone provides a buffer volume which is filled during the injection process and then emptied again.