Location History:
- Marion, OH (US) (1979 - 1981)
- Londonderry, NH (US) (1989)
- Londonberry, NH (US) (1990)
Company Filing History:
Years Active: 1979-1990
Title: The Innovative Contributions of Robert E. Nunn
Introduction
Robert E. Nunn, an accomplished inventor from Marion, OH, has made significant contributions to the field of engineering with his six patents. His work primarily focuses on advancements in plasticating processes, particularly in extrusion and injection molding techniques.
Latest Patents
Nunn's latest patents reflect his dedication to improving manufacturing processes. One of his notable inventions is the "Mixing Screw for Extrusion and Injection Molding," which features a plasticating screw that contains a unique mixing section. This section is comprised of two flow channels, separated by barrier flights that aid in distributing inhomogeneities in the material being processed. The design allows for pressure-driven cross-flows that enhance the material's consistency during processing.
Another innovative patent is the "Adaptive Process Control for Injection Molding," which describes a method for determining PVT constants for materials used in injection molding. This technique involves pressurizing material in the barrel against a blocked outlet nozzle and measuring the volume during pressurization. By plotting specific volume against various pressure and temperature values, valuable PVT relationships can be derived, leading to improved injection molding operations.
Career Highlights
Throughout his career, Robert E. Nunn has held influential positions at prominent companies, notably HPM Corporation and United States Steel Corporation. His deep knowledge and expertise have significantly impacted the efficiency of manufacturing processes in these organizations.
Collaborations
During his journey, Nunn has collaborated with talented professionals, including his coworker Louis A. Cutter. These partnerships have contributed to the development of novel solutions within their industry.
Conclusion
Robert E. Nunn stands out as a dedicated inventor whose innovative patents have advanced the field of extrusion and injection molding. His contributions not only demonstrate his technical skill but also his commitment to enhancing the efficiency of manufacturing processes.