Patent 9500419 was granted and assigned to HyperSciences, Inc. on November, 2016 by the United States Patent and Trademark Office.
One or more ram accelerator devices may be used to form one or more holes in geologic or other material. These holes may be used for drilling, tunnel boring, excavation, and so forth. The ram accelerator devices propel projectiles which are accelerated by combustion of one or more combustible gasses in a ram effect to reach velocities exceeding 500 meters per second.