Abstract: A keyless chuck gripping device for opening or closing jaws of a chuck of a rotary tool without using a chuck key includes a first portion having a surface extending at least partially around an outer surface of a chuck locking drum. The first portion is attached to a forward housing portion of the rotary tool or the outer surface of the chuck locking drum. A second portion connected to the first portion is urged into frictional or lock engagement with the unattached portion of the rotary tool where manual actuation alters rotational speed of the chuck locking drum relative to the speed of the rotary tool shaft. The second portion maintains the chuck locking drum in a stationary position while the shaft is driven by the motor, enabling the chuck locking drum to turn the chuck jaws in forward or reverse direction.

Abstract: Apparatus for remotely measuring and accessing water status relative to snow and glacial melt, surface runoff, rainfall, evaporation, flow rate, and soil moisture. A radar target located at a selected location on the surface of the earth is designed to collect water and render its cross-sectional area variable as a function of the height of the water level within the target. The target is remotely monitored by an orbiting or airborne synthetic aperature radar. The target appears as a bright spot embedded within the radar image. The target brightness is indicative of the height of the water level within the ground located target.