A mold apparatus and method is used to form a solid injection molded plastic part having no internal voids, a Class A finish, a sink-free exterior appearance surface, and unevenly distributed structural detail extending from the opposite surface, the detail including free-standing reinforcement ribs,...http://www.google.es/patents/US6403014?utm_source=gb-gplus-sharePatente US6403014 - Method for fluid compression of injection molded plastic material
Method for fluid compression of injection molded plastic material
