Company Filing History:
Years Active: 1992-1995
Title: Innovations by Thomas W. Sheehy
Introduction
Thomas W. Sheehy is a notable inventor based in Hamden, Connecticut, with a focus on advancements in unmanned aerial vehicles and helicopter noise control systems. He holds three patents that showcase his innovative contributions to the field of aerospace engineering.
Latest Patents
One of his latest patents involves ancillary aerodynamic structures for an unmanned aerial vehicle (UAV) featuring a toroidal fuselage. This design incorporates a rotor assembly with counter-rotating rotors, which are coaxially mounted to enhance aerodynamic efficiency. The ancillary structures are strategically configured to provide a nose-down pitching moment, counteracting the nose-up pitching moment generated during forward flight. These structures are designed with a cambered airfoil profile to maximize lifting forces, ensuring optimal performance during UAV operations.
Another significant patent by Sheehy is an active noise control (ANC) system for helicopters. This system effectively nullifies high-frequency vibrations from the main transmission gearbox, significantly reducing interior noise levels. The ANC system is optimized to minimize the number of required actuators and to reduce contamination forces arising from actuator operation. It includes modified transmission beams that are mechanically stiffened, along with a network of actuators and sensors that work in tandem to enhance the helicopter's acoustic environment.
Career Highlights
Sheehy has made substantial contributions to the aerospace industry through his work at United Technologies Corporation. His innovative designs and systems have played a crucial role in advancing UAV technology and improving helicopter performance.
Collaborations
Throughout his career, Sheehy has collaborated with notable colleagues, including Charles A. Yoerkie, Jr. and William Arthur Welsh. These partnerships have fostered a collaborative environment that encourages innovation and the development of cutting-edge technologies.
Conclusion
Thomas W. Sheehy is a distinguished inventor whose work in UAV and helicopter technology has led to significant advancements in the aerospace field. His patents reflect a commitment to innovation and excellence in engineering.