| DELTA ENGINEERED PLASTICS Patent applications |
| Patent application number | Title | Published |
|---|
| 20110115117 | INTERCHANGEABLE MOLD TOOLING - Tooling assemblies for interfacing with interchangeable molds are provided, each with a tooling body for mounting to a platen of a press of an injection molding machine and for receiving an interchangeable mold block. Interchangeable mold blocks are also provided for forming articles. A series of fasteners fasten each mold block to one of the tooling bodies. Alignment systems are oriented within a perimeter of the mold block to permit expansion of the mold block relative to the tooling body to accommodate varying rates of thermal expansion of the tooling body and the mold block. Methods for assembling a mold, molding an article and interchanging a mold with interchangeable mold blocks are also provided. | 05-19-2011 |
| 20110052899 | METHOD OF MANUFACTURE OF A FOAMED CORE CLASS "A" ARTICLE - The method of manufacturing an article having a surface, a skin, and a core includes closing a first mold portion on a compressible seal. The seal is disposed between the first and second mold portions. The portions define a pressurizable mold cavity having a spaced apart injection port and a vent. The mold cavity is pressurized at a first pressure greater than atmospheric pressure. Molten plastic and blowing agent are injected form gas cells within the mixture. The gas cells have an internal pressure exceeding the first pressure. After waiting for a first period, the pressurizing gas is vented for a second period at a rate sufficient to rupture the gas cells which form a skin adjacent to the mold cavity wall. The skin defines a core cavity filled with the foamed mixture, which is solidified. The mold portions are separated releasing the article. | 03-03-2011 |
