Anti-siphon fuel filler assembly
OwnerRussell D. Kellerinventor
Life of this patent
Estimating the term…
Abstract
An anti-siphon fuel filler assembly having restriction means therein for preventing unauthorized fuel removal is provided. In addition, back pressure relief means are provided for preventing the premature deactivation of automatic fuel dispensing systems caused by reverse fuel flow. The back pressure relief means includes a plurality of side openings and tabs extending outwardly from the edges of such side openings to deflect fuel out of the side openings when such fuel splashes upward from the restriction means. The invention may be used as an insert, fixedly positioned within an existing filler neck tube. In the alternative, the invention may be an anti-siphon filler neck tube used as an original equipment component for new vehicles, replacing the conventional filler neck tube.
Claims24
An anti-siphon fuel filler assembly for placement in a fuel tank comprising:
- tube means adapted to be positioned in said fuel tank for allowing fuel to flow therethrough into said tank;
- restriction means in said tube means for preventing the insertion of a siphon hose into said tank;
- a plurality of openings in the side walls of said tube means;
- and
- deflection means for outwardly directing any reverse flow of fuel in said tube means, said deflection means including a plurality of tabs, each tab being positioned adjacent one of said openings, and projecting outwardly therefrom.
An anti-siphon fuel filler insert for placement in the filler neck tube of a fuel tank comprising:
- insert tube means adapted to be positioned in said filler neck tube for allowing fuel to flow therethrough into said tank;
- restriction means in said insert tube means for preventing the insertion of a siphon hose into said tank;
- a plurality of openings in the side walls of said insert tube means;
- and
- deflection means for outwardly directing any reverse flow of fuel in said insert tube means, said deflection means including a plurality of tabs, each tab being positioned adjacent one of said openings, and projecting outwardly therefrom.
Dependencies are inferred from the claim text.