Abstract: Presented is an automatic trailer hitch for enabling removable coupling between a towing vehicle and a towed vehicle. The automatic trailer hitch includes a base module, a vertical climbing module, linchpin modules configured for selectively driving the linchpins in an engaged position and a disengaged position, and a rotation module. The vertical climbing module is configured to vertically displace a hitch along a single axis. The plurality of linchpin modules is configured for selectively driving the linchpins in an engaged position and a disengaged position. A controller module is operatively coupled to each of the vertical climbing module, the linchpin modules, and the rotation module to monitor and control the multiple-axis position adjustment of the hitch(s) of the automatic trailer hitch.

Abstract: Presented is an electric toothbrush system capable of being operated in a rinsing mode to rinse the mouth with clean water, a vacuuming mode for sucking out oral gunk left in the mouth after brushing is done besides used for cleaning teeth and gums. The electric toothbrush system is configured to illuminate the interior of the mouth of the user, and is provided with the capability to decontaminate the water used for rinsing the mouth.