Michael A Roberts

Title: *Michael A. Roberts: Innovator in Refractory Materials*

Introduction

Michael A. Roberts is a notable inventor located in Sheffield, GB, recognized for his contributions to advanced refractory materials. With a total of three patents to his name, he has demonstrated a strong commitment to innovation in the field of cementitious formulations designed to withstand extreme conditions.

Latest Patents

Roberts' most recent patents showcase his ingenuity in creating innovative materials. One such patent is for a basic refractory cementitious material and components thereof. This formulation is self-setting when mixed with water, allowing it to be cast into monolithic refractory components that can resist molten metal and endure repeated thermal shocks. The formulation consists of three key components: high purity magnesia (at least 94% by weight being MgO), high purity alumina (at least 98% by weight Al2O3), and high alumina cement (preferably containing 75% Al2O3 or greater by weight). The optimal balance includes magnesia constituting 60 to 95% by weight of the three components, with alumina making up at least 1%. Castings produced from this formulation demonstrate remarkable resilience, surviving multiple flame tests even after exposure to elevated firing temperatures— a feat that traditional pressed magnesia refractories could not achieve.

Another significant patent by Roberts involves the development of composite moulded refractory articles. This invention focuses on a sliding gate valve slide plate integrated into a can, which features an integral collector nozzle. It consists of two conjoined refractory concrete mouldings with a cup or trough-shaped oxidizable metal foil lying in the joint. This innovative design allows the concrete formulations to vary, optimizing the moulding that comes into contact with molten metal to be more resistant to the harsh conditions of metal flow. The slide plate is cleverly cast in two steps, utilizing the shaped foil and the can as lost mould members, resulting in a finished product that requires minimal to no grinding before installation in a valve.

Career Highlights

Michael A. Roberts currently works at Uss Engineers and Consultants, Inc., where he continues to push the boundaries of refractory material engineering. His extensive work and innovative patents reflect his expertise and dedication to enhancing industrial processes through better materials.

Collaborations

Roberts collaborates closely with his coworker, Martin Copperthwaite, contributing to the success of their innovative projects at Uss Engineers and Consultants, Inc. Together, they are committed to advancing the technology and application of refractory materials.

Conclusion

Michael A. Roberts exemplifies the spirit of innovation in the field of refractory materials. His patents not only enhance the performance of manufacturing processes but also pave the way for future developments in the industry. As he continues his work with Uss Engineers and Consultants, Inc., his contributions will undoubtedly leave a lasting impact on the world of engineering and materials science.