Donald J Griffin

Title: The Innovations of Donald J. Griffin

Introduction

Donald J. Griffin is a notable inventor based in York, PA (US). He has made significant contributions to the field of materials used in the casting process, particularly in the development of improved submerged entry nozzles. With a total of 2 patents to his name, Griffin's work has had a meaningful impact on the industry.

Latest Patents

Griffin's latest patents include an innovative design for a slagline sleeve for submerged entry nozzles. This improved nozzle is particularly useful in the casting of aluminum killed molten steel. The design features a slagline sleeve or collar that surrounds the outer portion of the nozzle, providing protection from corrosion during the casting process. The sleeve is made from a resin-bonded zirconia/graphite mixture, which has been formulated to reduce the contractile tendency upon curing. This reduction leads to decreased stress fracturing, enhancing the durability of the nozzle. An effective amount of calcium oxide is added to the resin-zirconia-graphite mixture to achieve this resistance to stress fracturing.

Career Highlights

Griffin is currently employed at Baker Refractories, Inc., where he continues to innovate and develop new materials for the casting industry. His work has been instrumental in advancing the technology used in submerged entry nozzles, making them more efficient and reliable.

Collaborations

Throughout his career, Griffin has collaborated with notable colleagues, including Donald Bruce Hoover and Franklin A. Renda. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Donald J. Griffin's contributions to the field of materials science and casting technology are commendable. His patents reflect a commitment to improving industrial processes and enhancing product durability. His work continues to influence the industry positively.