Company Filing History:
Years Active: 2009-2015
Title: Innovations of Stephen D Doll
Introduction
Stephen D Doll is an accomplished inventor based in Portland, Connecticut. He has made significant contributions to the field of engineering, particularly in the area of turbine technology. With a total of three patents to his name, Doll's work has had a notable impact on the industry.
Latest Patents
One of Doll's latest patents is the "EDM method for multi-lobed cooling hole." This innovative method involves forming a cooling hole that extends from an inlet on a first surface of a wall to an outlet on a second surface. The process includes creating a diffusing section of the cooling hole and a trailing edge on the outlet through electrical discharge machining. Additionally, longitudinal lobes are formed in the diffusing section, enhancing the cooling efficiency of turbine components.
Another significant patent is the "Turbine blade nested seal and damper assembly." This assembly features a seal nested within a damper, designed to provide effective sealing between adjacent blade platforms. The seal traverses the seal slot in the damper, ensuring that the gap between adjacent blade platforms is sealed along the full axial length of the neck cavity. The damper is strategically positioned to enhance vibration-dampening performance, which is crucial for the reliability of turbine operations.
Career Highlights
Stephen D Doll is currently employed at United Technologies Corporation, where he continues to innovate and develop advanced technologies. His work has been instrumental in improving the performance and efficiency of turbine systems.
Collaborations
Doll has collaborated with notable colleagues, including Amarnath Ramlogan and Rajendra K Agrawal. These partnerships have fostered a creative environment that encourages the development of cutting-edge solutions in the field of engineering.
Conclusion
Stephen D Doll's contributions to turbine technology through his innovative patents demonstrate his expertise and commitment to advancing engineering solutions. His work continues to influence the industry and inspire future innovations.