Abstract: A novel fluid coupling and seal assembly. The assembly includes a coupling body 12 having generally concentric first and second bores 36,38 of greater and lesser diameters, respectively, the first bore also being provided with a generally cylindrical groove 44. A resilient retainer 14 is assembled within the generally cylindrical groove, the retainer having a plurality of prongs 52 which extend inwardly and towards the second groove. A seal assembly 16 is disposed within the coupling body between the retainer and the second bore, the seal assembly including an O-ring 60 formed of an elastomeric material and a tearable diaphragm 64 integral with and of the same material as the O-ring and capable of blocking the passage of fluid through the O-ring prior to the insertion of a fluid line 24. The fluid line which is adapted to be associated with the coupling is provided with a flange 26 which is engaged by the free ends 58 of the resilient prongs to hold the fluid line within the coupling assembly.

Abstract: A quick connect fluid coupling, and more particularly a quick connect fluid coupling having a minimum number of parts, which can be quickly assembled and disassembled, and which provides a good seal in an environment which is subject to vibrations and to relative motion between a fluid line and a port defining structure.

Abstract: A novel fluid coupling, a novel tool for removing a coupling seal from the novel fluid coupling, and the method of utilizing the coupling seal removal tool. The coupling 10 includes a check valve 58 which has a skirt portion 64 normally disposed within a coupling seal when either a male coupling 12 is connected to it, or when the male coupling has been removed. The female coupling is so designed that the skirt of the check valve can be entirely shifted outside of the coupling seal 62 when the novel seal removal tool 68 is inserted into the open end of the coupling. The tool is provided with a knife edge (between surfaces 82 and 84) which can engage the inner annular surface of the seat 62 and cause the seal to be removed when the tool is removed from the open end of the female coupling.