Company Filing History:
Years Active: 1985-1994
Title: Innovations by David A Larson
Introduction
David A Larson is a notable inventor based in Minneapolis, MN (US). He has made significant contributions to the field of cutting technology, holding a total of 5 patents. His innovative designs focus on enhancing efficiency and effectiveness in excavation and cutting processes.
Latest Patents
One of Larson's latest inventions is the Double Acting Bit Holder. This device allows bits to be resharpened during cutting action, which increases energy efficiency by reducing the amount of small chips produced. The holder consists of a stationary base portion that can be fixed to a cutter head of an excavation machine, featuring an integral extension with a bore hole to accommodate a pin shaft. The movable portion of the holder rotates around the axis of the pin shaft, allowing for a shank of a bit to be accommodated. A biased spring enables the movable portion to pivot during cutting action, allowing for optimal positioning of the bit and minimizing chip creation.
Another significant invention is the Impact Assisted Segmented Cutterhead. This device is designed for cutting various surfaces, from coal to granite. It comprises multiple cutting bit segments arranged side by side to form a continuous cutting face, with individual impactors associated with each segment. The impactor rods connect the impactors to their respective cutting bit segments, while shock mounts dampen vibrations from the impactors. Mounting brackets are utilized to attach the cutterhead to a base machine.
Career Highlights
David A Larson has dedicated his career to advancing cutting technologies. His work has been recognized for its innovative approach to improving efficiency in excavation processes. He is associated with the United States of America as represented by the Secretary of, where he continues to develop and refine his inventions.
Collaborations
Throughout his career, Larson has collaborated with notable colleagues, including Roger J Morrell and Peter L Ruzzi. These partnerships have contributed to the development of his innovative technologies and have enhanced the impact of his work in the field.
Conclusion
David A Larson's contributions to cutting technology through his innovative patents demonstrate his commitment to improving efficiency in excavation processes. His inventions, such as the Double Acting Bit Holder and the Impact Assisted Segmented Cutterhead, reflect his expertise and dedication to advancing the industry.