Patent ID: 7677609

Claim:
A fitting for use with corrugated tubing, the fitting comprising: a nut having a passage therethrough for receiving the tubing, the tubing being corrugated tubing having a series of peaks and valleys; a plurality of retainers positioned forward of the nut, the retainers having a sealing surface for placement in a valley of the corrugated tubing; a body having an annular pocket formed circumferentially around the retainers, the body having a body sealing surface, wherein upon sealing, the tubing is compressed by contact between the retainer sealing surfaces and the body sealing surface thereby deforming the tubing to form a seal; a spring positioned within a cavity in the retainers, the spring driving the retainers into the pocket when the fitting is not sealed; wherein the body sealing surface is substantially perpendicular to a centerline of the fitting; wherein the nut includes a nut surface at a forward end of the nut, the nut surface engaging a retainer surface on the retainers to direct the retainers towards a centerline of the fitting upon engagement of the nut and body; and the body includes a body surface at a forward end of the body, the body surface having an oblique angle with respect to a centerline of the fitting, the body surface engaging the retainer to direct the retainers towards the centerline of the fitting upon engagement of the nut and body.