This inventor holds 3 USPTO granted patents. Top assignees: Heimscheidt Maschinentechnik Schwerwin Gmbh & Co., Hemscheidt Maschinentechnik Schwerin Gmbh, Hemscheidt Maschinentechnik Schwerin Gmbh & Co.. Active years: 1994-1996.
Company Filing History:
1 out of 1 
1 out of 1 
1 out of 4 Years Active: 1994-1996
Title: Walter Stein: Innovator in Plastic Injection-Molding Machinery
Introduction
Walter Stein is a notable inventor based in Schwerin, Germany. He has made significant contributions to the field of plastic injection-molding machinery. With a total of 3 patents to his name, Stein's innovations have advanced the efficiency and functionality of molding processes.
Latest Patents
One of Stein's latest patents is a mechanism for closing a mold in plastic injection-molding machinery. This mechanism is designed to accommodate large and heavy molding tools. It features a stationary chuck that rests on the machinery's base, while another chuck travels on a longitudinally movable carriage. Each chuck accommodates one half of the mold and is aligned by poles that can extend through the chucks. The carriage includes several bearing sites mounted on its bottom surface, and suspension crossarms are rotatably mounted to these bearing sites. The design incorporates eccentric portions of a shaft that connect to a torsion rod, allowing for precise movement and alignment of the mold components.
Another significant patent by Stein is a machine frame with a displaceable scaffold for the tool space of an injection molding machine. This innovative design includes stationary and movable tool clamping plates connected by adjustable columns. The machine frame is constructed with a stepped profile to lower the center of gravity of the movable tool clamping plate. The displaceable scaffold is designed to shift under the stationary tool clamping plate when the forming tool is closed, enhancing operational efficiency.
Career Highlights
Walter Stein has worked with prominent companies in the machinery sector, including Hemscheidt Maschinentechnik Schwerin GmbH and Heimscheidt Maschinentechnik Schwerin GmbH & Co. His experience in these organizations has contributed to his expertise in developing advanced machinery solutions.
Collaborations
Stein has collaborated with various professionals in his field, including his coworker Klaus Fuller. Their joint efforts have likely fostered innovation and creativity in their projects.
Conclusion
Walter Stein's contributions to plastic injection-molding machinery demonstrate his commitment to innovation and engineering excellence. His patents reflect a deep understanding of the complexities involved in molding processes, making him a significant figure in the industry.