Patent ID: 8678444

Claim:
A coupling for connecting a first component in fluid communication with a second component, the first component having a channel, an orifice opening into the channel, and an outside surface surrounding the orifice, the coupling comprising: a generally tubular body extending axially between a first end portion couplable to the first component and a second end portion couplable to the second component, the first end portion having an outer shoulder and a groove formed in the shoulder, the groove facing the first end portion of the body and having an end wall and an inner and an outer side flanking the end wall, the body defining at least one fluid passageway extending from the groove, the passageway formed as a duct opening onto the inner side of the groove and being connected in fluid communication with the channel of the first component when the body first end portion is coupled to the first component; and an annular seal received within the groove, the seal being engagable against the outside surface of the first component when the body first end portion is coupled to the first component, whereby when the body first end portion is coupled to the first component such that the body passageway is connected in fluid communication with the channel and the seal is engaged against the outside surface of the first component, the seal is urgable against the outside surface of the first component and the outer side of the groove by fluid introduced from the passageway between the seal and the groove.