David G Drewry, Jr

Title: David G. Drewry, Jr.: Inventor of Projectile-Tracking Technologies.

Introduction

David G. Drewry, Jr. is an inventor based in Middletown, Maryland. His patent work focuses on detecting projectile impact locations and determining projectile velocity vectors using optical sensors and measurements of arrival times. The supplied information lists 2 patents and identifies Johns Hopkins University as his company.

Latest Patents

Drewry’s listed patents describe methods and sensor structures for tracking projectile motion.

“Method for Detecting Projectile Impact Location and Velocity Vector” describes determining a projectile’s path by detecting its arrival at multiple intersecting planes. The method uses the recorded arrival times to calculate the projectile’s path and speed.

“Optical Sensor and Method for Detecting Projectile Impact Location and Velocity Vector” describes optically detecting a projectile’s arrival to determine its velocity vector. The sensor structure sandwiches a transparent layer between reflective layers, which are enclosed by opaque layers. The patent also describes arranging sensors in different planes, including non-parallel or parallel, potentially offset configurations, and allows for tiled sensor structures. An additional sensor may be used to measure velocity attenuation independently.

Career Highlights

The available information connects Drewry’s patent activity with Johns Hopkins University. His listed inventions address projectile detection through optical sensing and timing measurements, with sensor arrangements designed to capture motion across relevant trajectory dimensions.

Collaborations

The supplied information names Leo R. Gauthier, Jr. and Leroy Brunner as Drewry’s coworkers. Their specific roles in the listed patent work are not provided.

Conclusion

David G. Drewry, Jr.’s listed patents focus on optical and time-based techniques for locating projectile impacts and measuring projectile motion.