Company Filing History:
2 out of 3 
1 out of 35 Years Active: 2016-2019
Title: Inventor Spotlight: Stuart Thomas Rothnie
Introduction
Stuart Thomas Rothnie, an accomplished inventor based in Inverurie, Great Britain, has made significant contributions to the field of downhole technology. With a total of three patents to his name, Rothnie has focused his innovations primarily on actuators designed for use in oil and gas wells.
Latest Patents
Among Rothnie's latest endeavors is the innovative downhole actuator. This actuator is specifically intended for downhole tools like valves, integrated within a string of tubulars found in oil and gas wells. Its design features a central axis with radially movable counterweights positioned on opposite sides. These counterweights can move radially outward to alter the actuator's activation state. They are supported by link arms, which manage the movement in response to centrifugal forces generated during rotary drilling operations. The unique mechanism allows for the radial movement of counterweights to transmit axial forces between sleeves at both the upper and lower ends, thus facilitating the smooth operation of the actuator when triggered.
Career Highlights
Throughout his career, Rothnie has been associated with reputable companies, including CFF Technologies Limited and Managed Pressure Operations Pte, Limited. His work has focused on developing cutting-edge technologies that enhance operational efficiencies in the challenging environments of oil and gas extraction.
Collaborations
Rothnie has partnered with several notable individuals in his field, including Rae Andrew Younger and Bruce Thornton Jepp. These collaborations have allowed for a pooling of expertise, fostering innovative solutions that push the boundaries of current technology.
Conclusion
Stuart Thomas Rothnie's contributions to the field of downhole technology exemplify the spirit of innovation that drives the energy sector. His patents reflect a deep understanding of the complexities associated with oil and gas operations, solidifying his status as a valuable inventor within the industry. As technology continues to evolve, the significance of Rothnie's work may pave the way for further advancements in downhole tools and mechanisms.