Quick connect coupling devices for fluid carriers

A coupling device for releasably securing a first liquid-carrier to a second liquid-carrier, the second liquid-carrier having a cylindrical end portion terminating in a free end surface, said coupling device comprising:

• a housing configured for receipt of said end portion of said second-liquid carrier;
• a plunger located within said housing, said plunger including an engagement surface, an inner end portion, an outer end portion, and a passageway extending between said inner end portion and said outer end portion, said outer end portion being configured for releasable or fixed securement to the first liquid-carrier, said plunger being movable relative to a first portion of said housing between a first position, a second position and a third position;
• a gasket ring coupled to said inner end of said plunger and movable with said plunger, said gasket ring being interposed between the free end surface of the second liquid-carrier and said engagement surface of said plunger;
• a clamp assembly comprising portions of said housing and said plunger, said clamp assembly being located at said first portion of said housing and including at least one movable member having an engagement surface and another member, said at least one movable member being configured for pivoting movement or radial movement from an open state to a closed state, whereupon said engagement surface of said at least one movable member engages the cylindrical portion of the second liquid-carrier to releasably secure said coupling device thereto;
• and
• a handle coupled to said plunger to selectively move said plunger to said first, second and third positions;
• a locking assembly comprising a portion of said plunger and portions of said clamp assembly which are coupled to said portion of said plunger, said locking assembly being configured for selectively releasably holding said plunger in an unlocked state when said plunger is in said first position, a locked state when said plunger is in said second position, and in a locked and sealed state when said plunger is in said third position.