Henry John Rozema

Title: Henry John Rozema: Innovator in Injection Molding Technology

Introduction

Henry John Rozema is a notable inventor based in Brampton, Canada. He has made significant contributions to the field of injection molding, holding a total of 6 patents. His innovative designs have improved the efficiency and functionality of molding processes, making him a respected figure in the industry.

Latest Patents

Rozema's latest patents include a modular injection mold and manifold arrangement. This molding arrangement is designed for multi-level stack molds, where mold sets and runners consist of modular sections that can be interchanged individually or as larger assemblies. This flexibility allows for the easy exchange of molds for different parts and the adaptation of runners between hot tip and valve gate designs. The arrangement features discrete melt paths for each mold level, some of which extend around rather than through the mold levels, incorporating readily separable connectors. This design enables the interchange of molds and runners for one mold level without interfering with adjacent levels.

Another significant patent is for an apparatus that removes threaded parts from plastic injection molds. This apparatus is designed for forming threaded molded parts, such as closures for containers, with improved means for unthreading the formed part from the mold core. The apparatus includes a cavity part and a core part, with the cavity part being rotatable relative to the core part. This simultaneous rotation and mold opening facilitate the unthreading of the part from the core as the mold plates are separated.

Career Highlights

Throughout his career, Rozema has worked with several companies, including Tradesco Mold Limited and Mold-Masters Limited. His experience in these organizations has allowed him to refine his skills and contribute to various innovative projects in the injection molding sector.

Collaborations

Rozema has collaborated with notable professionals in the industry, including Harald H. Schmidt and David R. Brown. These collaborations have further enhanced his work and contributed to the development of advanced molding technologies.

Conclusion

Henry John Rozema's contributions to injection molding technology through his patents and collaborations have made a lasting impact on the industry. His innovative approaches continue to influence the field, showcasing the importance of creativity and engineering in manufacturing processes.