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:
Oct. 31, 1995
Filed:
Feb. 28, 1994
Andreas Gustavel, Ratingen, DE;
Ralf Horstkotter, Balve, DE;
Rolf Schlenz, Belbert, DE;
Harald Strunk, Plettenberg, DE;
Gebr. Happich GmbH, , DE;
Abstract
An apparatus for manufacturing a plastic molded part. A plasticized plastic composition is fed to the open mold cavity defined between a lower and an upper mold half. At least one web and perhaps two webs of decorative material to be applied to the molded part extend across the mold cavity. The closing of the mold halves presses the plastic composition against the web or webs. There is at least one two-part clamping frame for resiliently holding the web of decorative material by clamping it outside the mold cavity, so that the web can slip with respect to the composition as the mold halves move together. One clamping frame half is developed with an immersion edge which defines a side edge of the mold cavity and with a cutting plane spaced from the immersion edge a distance sufficient that the frame half also serves as an ejector for the molded part from the mold cavity as the mold halves open apart. Plastic composition is either directly delivered to the mold cavity or it is first delivered to a preforming chamber which is placed in the mold cavity and then the chamber is opened to deliver the preshaped part to the mold cavity. The preforming chamber has a non-adherent interior surface and/or is air permeable and a gas is supplied for the purpose of minimizing or eliminating adherence of the plastic composition to the internal surface of the preforming chamber.