This inventor holds 1 USPTO granted patent. Top assignee: Other. Active years: 1993.
Company Filing History:
1 out of 834,350 Years Active: 1993
Title: The Innovative Contributions of Roger Johnsrud
Introduction
Roger Johnsrud is a notable inventor based in Torrance, CA (US). He has made significant contributions to the field of tool design, particularly with his innovative approach to driving rotary tools. His work exemplifies the spirit of innovation that drives advancements in technology.
Latest Patents
Roger Johnsrud holds a patent for an "Arrangement for driving a rotary tool." This invention features a unique mechanism where the tool shank is engaged and frictionally driven by the interaction of three or more drive rollers. The axial movement of the tool is achieved by tilting the axes of the rollers, which is facilitated by flexible portions of the shafts that drive the rollers. The design allows for the tool to be released by moving one roller away from the other two. Additionally, a pressure foot is incorporated at the bottom of the assembly, which is reciprocated by a cam arrangement to engage the workpiece during operation. A position pick-off is also included to sense the axial position of the tool, enabling control of the tilt angle of the rollers through a dual feedback path servo loop with an improved preconditioning circuit for its feedback position counter. This patent showcases Johnsrud's ingenuity and technical expertise.
Career Highlights
Throughout his career, Roger Johnsrud has focused on developing innovative solutions that enhance the functionality and efficiency of tools. His dedication to improving tool design has led to advancements that benefit various industries.
Collaborations
Roger has collaborated with fellow inventor William F Marantette, contributing to the development of innovative technologies and tools. Their partnership highlights the importance of teamwork in the field of invention.
Conclusion
Roger Johnsrud's contributions to the field of tool design through his innovative patent demonstrate his commitment to advancing technology. His work continues to inspire future inventors and innovators in the industry.