Patent ID: 7240927

Claim:
A connection assembly for connecting a filling hose to a fuel nozzle, the connection assembly comprising: a male connector having a bore defined through the male connector, an inner threading formed inside the bore for connection with the filing hose, a hollow extension and having two open ends, an outer annular sidewall and a first annular groove defined in an outer periphery of the extension; a first engaging ring mounted on the extension and having an inner annular sidewall, multiple legs extending from a peripheral edge of the first engaging ring and multiple first claws extending outward from distal ends of the legs; a female connector having a passage defined through the female connector to correspond to and receive therein the extension of the male connector, a second annular groove defined in an inner periphery of the female connector defining the passage to correspond to the first claws so as to allow the first claws to abut a bottom face defining the second annular groove, a hollow skirt extending from an end opposite the male connector and an outer threading formed on an outer periphery of the skirt for connection with the fuel nozzle; and a second engaging ring securely received in the passage of the female connector and having an outer annular sidewall, multiple fingers extending from a peripheral edge of the second engaging ring and multiple second claws extending inward from distal ends of the fingers to correspond to and abut a bottom face defining the first annular groove such that abutment of the first claws to the second annular groove and of the second claws to the first annular groove secures engagement between the male connector and the female connector.