| Patent Number |
Title Of Patent |
Date Issued |
| 4960557 |
Method of injection molding thin-walled plastic products |
October 2, 1990 |
| A method for injection molding a plastic product having a thin-walled area, includes the steps of(a) injecting molten plastic from a gate into a mold cavity defined by and positioned between a first mold part and a second mold part and encompassed by a parting line, for forming the plast |
| 4935188 |
Stabilized-core injection molding of hollow thin-walled plastic products |
June 19, 1990 |
| An injection molding method for controlling the dimensions of a hollow plastic product by using a mold having a first and second mold parts; wherein one of the mold parts includes a retractable portion adjacent a gate. The retractable portion is movable between a protracted position and |
| 4846483 |
Mandrel system for receiving cup having side wall ribbed interior surface for printing on exteri |
July 11, 1989 |
| In a mandrel system for receiving a cup-like product having a side wall with a ribbed interior surface, the exterior portion of the mandrel wall is adapted to firmly engage the interior surface of the product side wall in the regions between the ribs and to enhance interior backing of th |
| 4844405 |
Injection molding of thin-walled plastic products |
July 4, 1989 |
| A mold for injection molding a plastic product having a thin-walled area includes a first mold part and a second mold part defining a mold cavity therebetween, encompassed by a parting line, for forming the plastic product, and further defining a gate for admitting injected molten plasti |
| 4807775 |
Injection molding of thin-walled plastic products |
February 28, 1989 |
| An injection-molded, thin-walled, plastic product is formed by a mold cavity having a thin-cavity region; a pair of flow channels, which are thicker than the thin-cavity region for directing injected plastic into the thin-cavity region; and a meld chamber, which is thicker than the thin |
| 4789326 |
Stabilized-core injection molding of hollow thin-walled plastic products |
December 6, 1988 |
| In a mold for injection molding and controlling the dimensions of a hollow plastic product having side walls, in which a first mold part and a second mold part define a mold cavity therebetween, encompasssed by a parting line, for forming the hollow plastic product, and further define a |
