Company Filing History:
2 out of 51,920 
1 out of 4,997 
Years Active: 1976-1979
Title: Arthur McCardle, Jr: Innovator in Exhaust Nozzle Technology
Introduction
Arthur McCardle, Jr. is a notable inventor based in Greenhills, OH (US). He has made significant contributions to the field of exhaust nozzle technology, holding a total of 3 patents. His innovative designs have advanced the efficiency and functionality of gas turbine engines.
Latest Patents
One of McCardle's latest patents is the "Variable Area Exhaust Nozzle." This invention features a convergent-divergent exhaust nozzle equipped with a four-bar linkage system. This system allows for effective variation of both the primary nozzle throat and exit areas, as well as movement of the outer nozzle, all controlled by a single cam roller assembly. The design includes a rigid link extending from the exhaust duct and a compression link that pivotally connects to the divergent flap. The nozzle area variations are achieved by rotating the convergent flap about a pivot attached to the exhaust duct, with the divergent flap and outer nozzle flap moving accordingly. The desired nozzle throat/exit area ratio can be established by selecting the lengths of the individual links and their connection points.
Another significant patent is the "Variable Area, Load Balancing Nozzle." This exhaust device for gas turbine engines utilizes a unique actuation method that differs from conventional actuators. The area variation is accomplished through a rotatable duct section at the downstream end of the exhaust device. This design includes a nozzle flap and a piston in a pressure plenum, which helps balance the exhaust gas loads on the flap portion, facilitating its actuation.
Career Highlights
Throughout his career, McCardle has worked with prominent organizations, including General Electric Company and the United States of America as represented by the Secretary of the Air Force. His work has significantly impacted the aerospace industry, particularly in the development of advanced exhaust systems.
Collaborations
McCardle has collaborated with notable individuals in his field, including George H. Israel, Jr. and Frank J. Trombetta. These collaborations have contributed to the advancement of technology in gas turbine engines.
Conclusion
Arthur McCardle, Jr. is a distinguished inventor whose work in exhaust nozzle technology has led to innovative solutions in the aerospace sector. His patents reflect a commitment to enhancing the performance and efficiency of gas turbine engines.