Company Filing History:
4 out of 8,033 
1 out of 640 
Years Active: 1989-2000
Title: David H Roarty: Innovator in Nuclear Engineering
Introduction
David H Roarty is a notable inventor based in Murrysville, PA (US). He has made significant contributions to the field of nuclear engineering, holding a total of 5 patents. His work focuses on enhancing the safety and efficiency of nuclear reactor components.
Latest Patents
One of Roarty's latest patents is for a bolt with an integral locking member. This high-strength bolt is designed to fasten a baffle plate and a former plate of a pressurized water nuclear reactor pressure vessel together. The bolt features a head portion and an integral locking member that engages one of the structural members to lock the bolt securely. The locking member is engineered to have a lower yield stress than the shank, which can be achieved through selective annealing. This design minimizes susceptibility to stress corrosion cracking in the high-temperature, high-pressure environment of commercial nuclear power reactors.
Another significant patent involves electrochemical monitoring of vessel penetrations. This innovation allows for the monitoring of stress-corrosion damage in penetrations that traverse the wall of a vessel containing an electrolyte, such as a nuclear reactor pressure vessel. The design includes tubular penetrations that couple external devices to internal structures while maintaining a pressure barrier. Roarty's system utilizes probes that form electrochemical sensor cells, enabling the detection of corrosion through various electrochemical signals.
Career Highlights
Throughout his career, David H Roarty has worked with prominent companies in the nuclear sector, including Westinghouse Electric Corporation and Westinghouse Electric Company LLC. His expertise in nuclear engineering has positioned him as a valuable asset in the development of innovative solutions for reactor safety and efficiency.
Collaborations
Roarty has collaborated with notable colleagues such as Sam S Palusamy and John C Schmertz. These partnerships have contributed to the advancement of technologies in the nuclear engineering field.
Conclusion
David H Roarty's contributions to nuclear engineering through his patents and collaborations highlight his commitment to innovation and safety in the industry. His work continues to influence the design and monitoring of critical components in nuclear reactors.