Quick connect coupling with garter spring

A quick connect coupling comprising:

• (a) an outer receptacle means having an internal opening and an annular outer groove formed in the inner surface of said opening;
• (b) an inner insert means having an annular inner groove formed in the outer surface thereof;
• (c) said receptacle means being adapted to be assembled with said insert means in a position where said insert means is in said opening and said inner and outer grooves are substantially radially aligned;
• (d) a garter spring positioned in said outer groove prior to said assembly and extending between said inner and outer grooves after said assembly, said garter spring being formed by a series of circular coils;
• and
• (e) the bottom of said inner groove having an arcuate side which has substantially the same radius as the radius of said coils of said spring, and said outer groove including a slanted side which at least partially overlies said spring, each of said grooves having a forward end and a rearward end, said arcuate side being adjacent said forward end of said inner groove and said slanted side being adjacent said rearward end of said outer groove, said slanted side forcing said spring coils against said arcuate side when said insert means tends to move out of said receptacle means, said coupling having a longitudinal axis, and said slanted side of said outer groove making an angle substantially in the range of from 25.degree. to 30.degree. with said axis.