Self-closing gas cap for automatic filling machines

A self-closing cap for attachment to the fuel filler neck of a vehicle that is particularly adapted for use with an automatic filling machine, said neck having a restrictive flap within its inner diameter that is connected thereto by a pivotal connection, comprising:

• a closure ring having an annular body and means for detachably mounting the periphery of said annular body around the periphery of a filler neck,
• a closure flap assembly including a circular member having an opening, a closure flap, means for pivotally mounting said closure flap over said opening, and means for affixing said circular member at a selected position with respect to the periphery of said annular body of said closure ring after said ring has been mounted around the periphery of said filler neck such that the orientation of said pivotal mounting means is angularly adjustable relative to said annular body to a position substantially 180.degree. opposite from said pivotal connection of said restrictive flap, and
• a cover means detachably mountable over said closure flap assembly.

A self-closing cap adapted to be mounted onto a filler neck of a fuel tank of an automotive vehicle, comprising:

• a closure ring having an annular body and means for detachably mounting the periphery of said annular body around a peripheral edge of a filler neck, and
• a closure flap assembly including a circular member having an opening for receiving a nozzle, a closure flap, means for pivotally mounting an edge of said closure flap over said opening, and means for permanently affixing said circular member to said annular body such that the orientation of said pivotal mounting means is angularly adjustable relative to said annular body, and
• a cover means detachably mountable over said closure flap assembly.