Fluid coupling and seal assembly

A fluid coupling assembly to which a fluid line may be connected, the fluid line having an end portion which is adapted to be assembled within the fluid coupling assembly, the end portion having an intermediate outwardly extending flange provided with axially spaced apart first and second surfaces, the second surface being disposed more closely adjacent the terminal end of the fluid line than the first surface;

• the fluid coupling assembly comprising:
• a coupling body having generally concentric first and second bores extending through the body, the first bore extending inwardly from the outer surface of the body, and the second bore extending inwardly from the first bore and being of a smaller diameter than the first bore to provide a radially inwardly extending surface between the bores;
• a resilient retainer assembled within the coupling body and capable of engaging the first surface of the flange to retain the end portion of the fluid line within the body, the resilient retainer including a first portion engaging the coupling body between the outer surface and the inwardly extending surface and a plurality of prongs disposed within the first bore, one end of each of the prongs being integral with the first portion and the prongs extending radially inwardly and away from the outer surface of the coupling body, the free ends of the prongs being adapted to contact a first surface of a flange carried by an end portion of a fluid line when the end portion of the fluid line is assembled within the body;
• and
• a seal assembly disposed within the coupling body between the retainer and the radially inwardly extending surface, the seal assembly including an annular seal formed of a rubber-like material and a tearable diaphragm integral with and of the same material as the annular seal and capable of blocking the passage of fluid through the annular seal.

A fluid coupling assembly:

• a housing or the like provided with a port;
• a coupling body received within the port, the coupling body having generally concentric first and second bores extending through the body, the first bore extending inwardly from the outer surface of the body, and the second bore extending inwardly from the first bore and being of a smaller diameter than the first bore to provide a radially inwardly extending surface between the bores, the first bore further being provided with a generally circular groove;
• a resilient retainer assembled within the coupling body, the resilient retainer including a C-shaped first portion received with the generally circular groove and a plurality of prongs, one end of each of the prongs being integral with the C-shaped first portion and the prongs extending radially inwardly and away from the outer surface of coupling body;
• a fluid line having an end portion assembled within the coupling body, the end portion including an intermediate outwardly extending flange having axially spaced apart first and second surfaces, the first surface being disposed adjacent the free end of the prongs whereby the retainer prevents the withdrawal of the end portion of the fluid line from the coupling body;
• and
• a seal assembly including an O-ring in sealing engagement with the first bore and the fluid line between the flange and the terminal end of the fluid line.