| Injection Molding Technology | |
| The processing of resins in injection molding and extrusion are similar but have obvious differences (reciprocation). R. Dray Mfg. is unique in being able to bring current extrusion screw design technology into injection molding. This ability coupled with the necessary molding experience allows us to give the injection customer the best process technology today. | |
US patents in Injection Molding | |
| The "Repeater" | * Patent #5151282 |
| The "Repeater CIP" | * Patent #5258158 |
| SmartShot | * Patent#5470514 |
| Air Shut Off Nozzle | * Patent #5975127 |
| The All Purpose Valve | * Patent Approved |
| Machine Shut Off Nozzle | * Patent Pending |
| New Injection Molding Machine | * Patent Pending |
| The All Purpose Valve CIP | * Patent Pending |
| Various Foreign Patents Not Listed. | |
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