Company Filing History:
Years Active: 1992-2000
Title: Lee A. Carman: Innovator in Abrasive Tool Technology
Introduction
Lee A. Carman is a notable inventor based in Worcester, MA (US), recognized for his contributions to the field of abrasive tools. With a total of 7 patents to his name, Carman has made significant advancements that enhance the performance and efficiency of grinding tools.
Latest Patents
Carman's latest patents include innovative designs such as glass-ceramic bonded abrasive tools. This invention provides an abrasive tool that comprises sol-gel alumina abrasive grains bonded together by a glass-ceramic bond material. The tool features from about 35 to 65% by volume void spaces, with at least about 75% of the volume of the bond material located in the bond posts or in a coating on the abrasive grains. The volume proportion of bond to grain is from about 0.06 to 0.6. Another significant patent is for a high-speed grinding wheel. This method allows for superabrasive grinding performance from tools using less expensive, non-superabrasive conventional abrasive grain. It involves operating the conventional abrasive tool at ultra-high tangential contact speeds, achieving speeds of at least about 125 m/s. This innovation can be realized with segmented abrasive grinding wheels made from various bonded particles, providing long life and high performance.
Career Highlights
Throughout his career, Lee A. Carman has worked with prominent companies in the abrasives industry, including Norton Company and Saint-Gobain Abrasives, Inc. His work has significantly influenced the development of advanced abrasive technologies.
Collaborations
Carman has collaborated with notable professionals in his field, including Mianxue Wu and William S. Coblenz. These collaborations have contributed to the advancement of abrasive tool technology.
Conclusion
Lee A. Carman's innovative contributions to abrasive tool technology have established him as a key figure in the industry. His patents reflect a commitment to enhancing performance and efficiency in grinding applications.