Company Filing History:
Years Active: 1987-1988
Title: The Innovative Contributions of Robert P. Hallissy
Introduction
Robert P. Hallissy is a notable inventor based in Jeannette, PA (US), recognized for his significant contributions to the field of engineering and tool design. With a total of 2 patents to his name, Hallissy has developed innovative solutions that enhance the functionality and durability of grader blades.
Latest Patents
Hallissy's latest patents include two groundbreaking designs for grader blades. The first patent, titled "Grader blade with tiered inserts on leading edge," features a steel body with a bottom edge that incorporates a pair of tiered, elongated carbide inserts. These inserts are strategically arranged in a stepped recess, providing enhanced impact wear resistance and downpressure wear resistance. The front insert is composed of a high cobalt content cemented carbide, while the rear insert has a lower cobalt content, optimizing its performance under different conditions.
The second patent, "Grader blade with casting/insert assembly on leading edge," presents a unique design that combines a substrate of air-hardened tool steel with a preformed cemented carbide insert. This innovative assembly is welded to the blade, ensuring durability and improved impact absorption. The front layer of carbide grit is tougher, while the rear insert is designed for enhanced downpressure wear resistance, showcasing Hallissy's expertise in material science and engineering.
Career Highlights
Hallissy is currently employed at Kennametal Inc., a company renowned for its advanced materials and tooling solutions. His work at Kennametal has allowed him to focus on developing cutting-edge technologies that meet the demands of modern engineering applications.
Collaborations
Throughout his career, Hallissy has collaborated with talented individuals such as Edmund Isakov and Earle W. Stephenson. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.
Conclusion
Robert P. Hallissy's contributions to the field of engineering through his innovative patents and collaborations highlight his commitment to advancing technology in tool design. His work continues to influence the industry, making a lasting impact on the effectiveness and efficiency of grader blades.