Abstract: A hand guard is disclosed having impermeable protection features and allowing skin contact on the pads of the fingers and thumb on a sensing hand. The first foil is a metacarpal guard shaped to cover the metacarpals and wrap around to cover a portion of the palm and thenar web space and having a fastener to fasten the first foil to itself. The digit guards include a thumb guard. Each digit guard is shaped like an elongated, hemispherical, cupped foil with contours to fit in overlying position for covering the dorsal and lateral portions of the thumb extending over a portion of both phalanges of the thumb. The digit guards are linked to the metacarpal guard, and each contain fasteners to retain the digits against the digit guards.

Abstract: An impact sensitive fuel supply control system comprising a fuel cell and a fuel line connecting said fuel cell to an engine, an electromechanically activated valve connected to said fuel line, a fuel pump located proximate to said engine, an impact sensative mechanical limit switch coupled to a limit switch locator mounted on or adjacent to said fuel pump, said electromechanically activated valve and said impact sensative mechanical limit switch in series in an electrical circuit which is interrupted when said switch and said limit switch locator are dislocated.