Patent ID: 7841315

Claim:
A safety fuel tank and filler cap apparatus for supplying fuel to an internal combustion engine that is started with a magnetoelectric generator, comprising; a) an engine having an exposed fuel tank that has a tank wall with an exterior surface, a tank interior for holding fuel, and a fill opening; b) an annular fuel filer flange positioned on the exterior surface of the tank wall, said annular flange having a central axis; c) a filler cap that removably connects to the fuel filler flange to form a closure of the tank at the fill opening when the cap center generally aligns with the flange central axis, said filler cap and adjoining fuel tank outer surface being configured to enable a user to grip and manipulate said fuel filler cap during removal from said annular fuel filler flange; d) a tether line that connects the filler cap to the engine; and e) a switch interfaced between the fuel tank and filler cap via the tether line that disables operation of the magnetoelectric generator when the filler cap is removed from the fuel filler flange.