William J Donahue

Title: The Innovations of William J Donahue

Introduction

William J Donahue is a notable inventor based in Takoma Park, MD (US). He has made significant contributions to the field of mechanical engineering, particularly in the development of projectile fuzes. With a total of 3 patents to his name, Donahue's work focuses on enhancing the reliability and safety of munitions.

Latest Patents

One of his latest patents is the "Small caliber fuze with arming delay, second impact and graze sensitivity." The objectives of this invention are to provide simple, reliable, and low-cost mechanical means to achieve second impact detonation and substantial safe arming separation from the gun for point detonating fuzes for small caliber spin stabilized shells. This is accomplished through the use of a heavy shield over the firing pin, which is removable between the first and second impacts by spin forces. Additionally, a centrifugally driven rotor containing the out-of-line explosive element deforms a ductile material to effect the arming delay.

Another significant patent is the "Flywheel type odometer safing and arming mechanism." This fail-safe projectile fuze safety-and-arming mechanism comprises a rotor that carries an explosive train component, with its mass center aligned on the projectile spin axis. The rotor is fixedly secured to a pinion that engages first and second drive gears, which have clearance spaces on their circumference. The design ensures continuous engagement between the drive gears while allowing intermittent engagement with the pinion due to the clearance spaces. This innovative mechanism achieves a constant, predetermined arming distance for selected projectile launchers, regardless of the linear velocity of the projectile.

Career Highlights

Throughout his career, William J Donahue has worked with various organizations, including the United States as represented by the Secretary of the Navy. His expertise in the field has led to advancements in safety mechanisms for munitions.

Collaborations

Donahue has collaborated with notable individuals such as Thomas A Cammack and Milton K Burford, contributing to the development of innovative technologies in his field.

Conclusion

William J Donahue's contributions to the field of mechanical engineering and munitions safety are commendable. His patents reflect a commitment to innovation and reliability in critical applications. His work continues to influence advancements in projectile technology.