Abstract: A vehicle security system is disclosed which includes a code entry module and a decoding module. The decoding module is preferably a sealed module mounted within the fuel tank of the vehicle and arranged so as normally to disable the vehicle fuel system (e.g., a fuel pump or fuel valve mounted within the fuel tank) and further arranged to respond to a predetermined access code being entered on the code entry module to enable the fuel system for normal running of the vehicle.

Abstract: A plate or wing-type ground anchor for driving upright and into the ground to desired depth and pulled into flat anchoring position at the driven depth is provided with an extended cruciform shaped leg in advance of the plate wings to act as a star drill or chisel facilitating penetration of the ground. The plate anchor has an axial tubular body portion providing an elongated round bottom socket for mating with a round bottom drive rod for efficient transfer of impact energy from the rod to the anchor. A raised central rib on the tubular body portion has a sharp front cutting edge and a reduced thickness trailing end with a transverse hole therethrough. A pull member can include either a loop pivoted in the hole or a shackle straddling the reduced thickness end with a pin pivoted in the hole. Shoulders on the rib overlie the loop or shackle to divert earth therearound.