Patent attributes
A coupling assembly having male and female coupling members that are connectable and separable from each other. The coupling assembly utilizes a resiliently expandable locking element, which is provided on the male coupling member, to connect the male and female coupling members together by trapping the locking element, in its expanded position, between respective locking surfaces of the male and female coupling members. A locking sleeve, which is movable between unlocked and locked positions, is employed to move the locking element to its expanded position. In this position, the locking element prevents the withdrawal of the male coupling member from the female coupling member by creating a positive lock therebetween. To maintain the locking sleeve in its locked position, a retainer can be used.