This inventor holds 1 USPTO granted patent. Top assignee: S&b Industrial Minerals North America, Inc.. Active years: 2015.
Company Filing History:
Years Active: 2015
Title: Comelis Grefhorst: Innovator in Casting Quality Improvement
Introduction
Comelis Grefhorst is a notable inventor based in Winterswijk, Netherlands. He has made significant contributions to the field of foundry technology, particularly in improving casting quality through innovative methods.
Latest Patents
Grefhorst holds a patent for a "Method for improvement of casting quality." This invention focuses on systems and methods for enhanced molding sand performance by utilizing recovered additives from the existing waste stream in a foundry. The process involves wet recovering sand, clay, and carbon-containing organic components from a green sand mold foundry dust recovery system. The sand and non-sand fractions can be treated to reduce water content or adjust various components, creating a pre-mix additive for new green sand molds. These molds exhibit improved properties at both ambient and high temperatures compared to traditional pre-mix methods. Notably, some pre-mixes achieve reduced sulfur content, and the non-sand fraction obtained from dust recovery includes increased levels of bentonite clay and carbon.
Career Highlights
Grefhorst is associated with S&B Industrial Minerals North America, Inc., where he applies his expertise in foundry processes. His work has contributed to advancements in the efficiency and quality of casting materials.
Collaborations
Throughout his career, Grefhorst has collaborated with notable colleagues, including Victor S. LaFay and Mark Pine. These partnerships have fostered innovation and development in the field of foundry technology.
Conclusion
Comelis Grefhorst's contributions to the improvement of casting quality through innovative methods highlight his role as a significant inventor in the foundry industry. His work continues to influence the efficiency and effectiveness of molding processes.