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:
Mar. 29, 2011
Filed:
Aug. 20, 2004
Marcel Op DE Laak, Freiburg, DE;
Marcel Op de Laak, Freiburg, DE;
Other;
Abstract
For producing a plastic component () with an internal hollow space (), at first plastic is injection molded into an injection mold () and its cavity () and then for displacing the plastic melt from the internal hollow space () to be formed, gas under pressure is injected into the still liquid plastic melt, after which for cooling the plastic, a cooling liquid is also introduced into this internal hollow space (). So that this cooling can be performed as quickly as possibly, the gas is compressed with the help of the cooling liquid and inserted or injected into the plastic melt, so that the cooling liquid directly follows the gas, wherein it can already extend into the internal hollow space () before this space is completely formed by the gas, i.e., gas and cooling liquid can be present simultaneously in the internal hollow space () to be formed.