An unmanned vehicle capable of tunneling into soft mate rials, such as sand, comprises a
hollow, bullet-shaped for ward outer body with a first drive screw thread integrated into its …

An all-terrain rover is provided in which the arrangement of flanges of one or more cylinders
of first and second cylinder systems allow for forward and backwards motion, as well as …

In the art, performing geological exploration operations usually requires setting up a large
excavation device on the ground. However, there are shortcomings such as timeconsuming …

(57) ABSTRACT A steerable subsurface probe for particulate materials broadly includes a
plurality of elongated, helically flighted adjacent bodies, a frame supporting the bodies, a …