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:
Jan. 04, 2005
Filed:
Jan. 29, 2002
Michael B. Smith, Smithton, IL (US);
Keith Korte, Damiansville, IL (US);
Todd C. Parker, Nashville, IL (US);
Russell R. York, Hoyelton, IL (US);
Michael B. Smith, Smithton, IL (US);
Keith Korte, Damiansville, IL (US);
Todd C. Parker, Nashville, IL (US);
Russell R. York, Hoyelton, IL (US);
Conix Corporation, Dearborn, MI (US);
Abstract
The present invention (FIGS.) provides an injection molding method and apparatus. A hot manifold is provided having a plurality of independently controlled valve gates. A controller is operably connected to each of the valve gates enabling independent opening and closing thereof. A mold has at least two cavities, a larger cavity and a relatively smaller cavity. The larger cavity has at least two inlets each communicating with the valve gates of the hot manifold. The smaller cavity has at least one inlet communicating with respective valve gate of the hot manifold. The larger cavity is filled with a first plasticized material by sequentially opening and closing the valve gates communicating with the large cavity. The larger cavity is packed out. Simultaneously with the packing out step, the smaller cavity is filled and packed out with a second plasticized material by opening and closing the at least one respective valve gate. A large and a small part may be molded in the same time as required for molding solely the large part.