초록 ▼

A self-closing cap for the fuel filler neck of a vehicle is provided which is particularly adapted for use with an automatic gas filling machine. The cap comprises a closure ring having an annular body and screw threads or bayonet lugs for detachably mounting the periphery of the annular body around

A self-closing cap for the fuel filler neck of a vehicle is provided which is particularly adapted for use with an automatic gas filling machine. The cap comprises a closure ring having an annular body and screw threads or bayonet lugs for detachably mounting the periphery of the annular body around the open end of the filler neck, and a closure flap assembly formed from a circular member with a nozzle receiving opening, a closure flap spring biased over the opening, and a pivotal mounting connecting the flap over the opening. The closure flap assembly includes a locking ratchet mechanism for securing the circular member over the closure ring in a selected angular position such that the pivotal mounting is substantially 180.degree. opposite from the pivotal connection of the restrictive flap within a filler neck of a vehicle to allow a fuel nozzle from an automatic gas filling machine to be smoothly inserted into and withdrawn from the self-closing cap. The cap has a cover that snap-fits over the closure flap assembly. The top wall of the cover serves as an inclined guide face for guiding the nozzle of an automatic gas filling machine into the opening of the closure flap assembly. An overpressure valve assembly is incorporated into the circular member for releasing vapor and gases from the vehicle fuel tank when the pressure in the tank approaches a tank-rupturing level.

대표청구항 ▼

[ What is claimed:] [1.] A self-closing cap for a filler neck of a container wherein said neck includes a restrictive flap pivotally connected thereto, comprising:a closure ring having an annular body and means for detachably mounting the periphery of said annular body around a peripheral edge of sa

[ What is claimed:] [1.] A self-closing cap for a filler neck of a container wherein said neck includes a restrictive flap pivotally connected thereto, comprising:a closure ring having an annular body and means for detachably mounting the periphery of said annular body around a peripheral edge of said filler neck, anda closure flap assembly including a circular member having an opening for receiving a nozzle, a closure flap, means for pivotally mounting said closure flap over said opening, and means for affixing said circular member to said annular body such that said pivotal mounting means is substantially opposite to a pivotal connection between said restrictive flap and said neck, andan overpressure valve assembly mounted onto said closure ring for releasing gases and vapors from said container when the pressure in the container reaches a predetermined limit.