Selective fuel nozzle inhibiting system

A fuel intake assembly, comprising:

• a main tube defining a fuel channel;
• at least one flapper pivotally secured within said main tube, said at least one flapper closing said fuel channel in a closed position;
• and
• a selective nozzle inhibitor proximate said at least one flapper,
• wherein said selective nozzle inhibitor is configured to allow a first nozzle having a first diameter to move said at least one flapper into an open position, and configured to allow a second nozzle having a second diameter to move said at least one flapper into the open position, wherein the second diameter is greater than the first diameter,
• wherein said selective nozzle inhibitor is configured to prevent a third nozzle having a third diameter to move said at least one flapper into the open position, wherein the third diameter is less than the first diameter,
• wherein said selective nozzle inhibitor comprises at least one spring having a portion convex away from said at least one flapper in a radial direction of said at least one flapper to define a recess for retaining an edge of said at least one flapper in the closed position,
• wherein said spring is configured to be flexed away from said at least one flapper by any of the first and second nozzles so that said edge of said at least one flapper disengages from said recess, and
• wherein the recess configured to retain the edge of said at least one flapper in the closed position is formed at a central portion of the at least one spring.

A fuel intake assembly, comprising:

• a main tube defining a fuel channel;
• at least one flapper pivotally secured within said main tube, said at least one flapper closing said fuel channel in a closed position;
• and
• a selective nozzle inhibitor proximate said at least one flapper,
• wherein said selective nozzle inhibitor is configured to allow a first nozzle having a first diameter to move said at least one flapper into an open position, and configured to allow a second nozzle having a second diameter to move said at least one flapper into the open position, wherein the second diameter is greater than the first diameter,
• wherein said selective nozzle inhibitor is configured to prevent a third nozzle having a third diameter to move said at least one flapper into the open position, wherein the third diameter is less than the first diameter,
• wherein said selective nozzle inhibitor comprises first and second fingers,
• wherein said at least one flapper is pivotally secured to said first finger, an inner surface of said first finger being configured to directly contact the first nozzle or the second nozzle at the open position,
• said second finger comprises a slot extending through a thickness of the second finger to retain an edge of said at least one flapper in the closed position, and
• wherein said fingers are configured to be flexed away from one another by any of the first and second nozzles so that said edge of said at least one flapper disengages from said slot.

A fuel intake assembly, comprising:

• a main tube defining a fuel channel;
• a pair of hinge portions opposing each other in a radial direction of the main tube;
• a pair of flappers pivotally secured within said main tube by the pair of hinge portions, respectively, said pair of flappers closing said fuel channel in a closed position;
• and
• a selective nozzle inhibitor proximate said pair of flappers, wherein said selective nozzle inhibitor is configured to allow a first nozzle having a first diameter to move said pair of flappers into an open position, and configured to allow a second nozzle having a second diameter to move said pair of flappers into the open position, wherein the second diameter is greater than the first diameter,
• wherein said selective nozzle inhibitor is configured to prevent a third nozzle having a third diameter to move said pair of flappers into the open position, wherein the third diameter is less than the first diameter,
• wherein said selective nozzle inhibitor comprises a pair of assemblies,
• wherein the pair of assemblies and the pair of hinge portions are alternately arranged along a circumferential direction of the main tube,
• wherein each of said assemblies comprises:
• a member having a curved surface configured to engage with and be pushed by any of the first and second nozzles,
• a compression spring operatively connected to the member, and
• a ledge outwardly extending from said compression spring below, but not beyond, said member, said ledge supporting the corresponding flapper in the closed position,
• wherein said compression springs are coil springs,
• wherein said compression springs are configured to be both compressed at the same time by any of the first and second nozzles to disengage said ledges from said flappers, and
• wherein said compression springs are configured to not be both compressed at the same time by the third nozzle.

A fuel intake assembly, comprising:

• a main tube defining a fuel channel;
• a web directly secured to a circumferential inner surface of said fuel channel, said web comprising open areas;
• a plurality of pivot arms positioned over said web, each of said plurality of pivot arms comprising
• an angled beam that is pivotally secured within said main tube,
• a leg integrally connected to the angled beam, and
• a shelf integrally connected to the leg;
• and
• an annular spring compressively biasing said plurality of pivot arms together in the closed position,
• wherein a diameter of the web is greater than a diameter of the annular spring,
• wherein said pivot arms are configured to be spread apart, by each of first and second nozzles having first and second diameters, respectively, to expose said open areas of said web,
• wherein the second diameter is greater than the first diameter, and
• wherein said pivot arms are configured to not be spread apart by a third nozzle, wherein the third nozzle has a third diameter that is less than the first diameter.