Patent ID: 8235079

Claim:
A device for covering a coupling fitting useful in transferring liquids, said device comprising: a) a housing having a top, a bottom and an edge, and further comprising a hub disposed substantially on the top of said housing; b) a plunger slidably disposed about said hub; c) a plurality of lock fingers pivotally attached to said housing substantially on said edge, said lock fingers being actuable responsive to movement of said plunger; d) a guide present on the bottom of said housing, said guide including an inner circular wall and an outer circular wall, said inner circular wall having at least one passageway disposed therethrough, said lock fingers being configured to maintain said device in a state of attachment to said fitting subsequent to insertion of said guide into said fitting, by actuation of said plunger, at least one of said lock fingers being connected to said plunger by means of a lever arm having a length, said lever arm being pivotally attached to both of said lock finger and said plunger.