Fluid coupling assembly
A fluid coupling assembly which has a novel female subassembly capable of receiving a male portion, the female subassembly being formed by spin welding two generally cylindrical plastic parts together, one of the parts being a quick connect end portion and the other part being the barb end portion. The female subassembly is provided with a key or keyway to prevent rotation, to mate with a corresponding key or keyway on the male portion to prevent false connections, and to act as a clear visual aid for orientation. In this design differing barb end portions can be secured to a common quick connect end portion.
1. A fluid coupling assembly, comprising:
a female subassembly capable of receiving a male portion, the female subassembly including two parts made of a plastic, one of the parts being a quick connect end portion, and the other part being a barb end portion, the barb end portion having an extension with an inner cylindrical surface and a shoulder surface adjacent the inner surface forming two surfaces of an O-ring gland, the quick connect end portion is provided with a shoulder portion which forms a third surface of the O-ring gland;
an O-ring received in the O-ring gland; and
a substantially continuous cylindrical weld extending between the quick connect end portion and the barb end portion for securing the parts together, by the substantially continuous weld being formed between an outer surface of the barb end portion and an interior cylindrical surface of the quick connect portion.
2. The fluid coupling assembly as set forth in claim 1 further comprising an O-ring, the substantially continuous cylindrical weld being on the quick connect portion side of the O-ring.