Location History:
- West Haven, CT (US) (1980 - 1986)
- Stratford, CT (US) (1987 - 1996)
Company Filing History:
Years Active: 1980-1996
Title: **Lefteris N Valsamis: Innovator in Polymer Processing Technologies**
Introduction
Lefteris N Valsamis is a prominent inventor based in West Haven, Connecticut, known for his significant contributions to the field of polymer processing. With a total of 12 patents to his name, he has established himself as a leader in designing advanced extrusion-compounding machines that enhance the efficiency and quality of plastic materials.
Latest Patents
Among his latest innovations, Lefteris has developed groundbreaking patents, including a **Multi-screw, extrusion-compounding machine with modular mixing elements**. This machine features co-rotating screw assemblies that incorporate sets of modular mixing elements with non-symmetrical geometries. These elements are designed to be removably mountable at any suitable axial locations along the screw shafts, optimizing performance depending on the specific plastic materials and additives used. The non-symmetrical designs allow for dynamic wedging pressurization, enabling effective circumferential flows of plastics through large shear clearances. This results in a more uniform temperature distribution during the mixing process, ultimately enhancing the viscosity and mixing quality of the materials.
Another notable patent is the **Rotary processor for plastic and polymeric materials providing surge**. This innovation involves enclosed processing passages that facilitate a more stable flow of materials, minimizing disturbances from upstream equipment. The design features a stabilizing passage and a metering passage to ensure that the flow of material remains consistent, hence improving product quality and processing efficiency.
Career Highlights
Lefteris N Valsamis has collaborated with established companies throughout his career, notably working for Usm Corporation and Farrel Corporation, where he applied his expertise in polymer processing technologies. His innovativeness in designing processing equipment has made notable impacts in the industry.
Collaborations
Lefteris has worked alongside esteemed colleagues such as Zehev Tadmor and Pradip S Mehta. These collaborations have further enriched his experience and contributions to the field of polymer processing and machine design.
Conclusion
Lefteris N Valsamis stands out in the field of innovations, particularly in the area of extrusion-compounding technology. His numerous patents reflect a commitment to improving the efficiency and effectiveness of plastic material processing, solidifying his position as a key figure in the field. As technology continues to evolve, inventions like those of Lefteris provide invaluable advantages in both industrial applications and product development.