This inventor holds 1 USPTO granted patent. Top assignee: Kennametal Inc.. Active years: 1978.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 1978
Title: The Innovative Mind of David C. Johnstone
Introduction
David C. Johnstone is a notable inventor based in Claysburg, PA (US). He has made significant contributions to the field of excavation tools, particularly with his innovative designs that enhance efficiency and effectiveness in drilling operations. His work is characterized by a focus on improving the functionality of tools used in challenging environments.
Latest Patents
Johnstone holds a patent for an excavation tool, specifically a down-the-hole bit. This tool is designed to reduce formations by being impacted axially against them while rotating. It features a fluid supply passage that allows air to be supplied to the working face of the bit, effectively blowing away the material taken by the bit. The design includes grooves that extend outwardly from the fluid supply passage to the periphery of the bit, which are in communication with axial grooves formed in the bit. This innovative design greatly improves the removal of debris that accumulates at the bottom of the hole being drilled, thereby increasing the efficiency of the bit. He has 1 patent to his name.
Career Highlights
David C. Johnstone is currently employed at Kennametal Inc., a company known for its advanced materials and tooling solutions. His role at Kennametal allows him to apply his inventive skills in a practical setting, contributing to the development of cutting-edge excavation technologies.
Collaborations
Johnstone collaborates with fellow inventor John F. Kita, working together to push the boundaries of excavation technology and improve the tools available for various applications.
Conclusion
David C. Johnstone's innovative contributions to excavation tools exemplify the impact of inventive thinking in the industry. His patent for a down-the-hole bit showcases his commitment to enhancing efficiency in drilling operations. Through his work at Kennametal Inc. and collaborations with other inventors, Johnstone continues to influence the field of excavation technology.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile