Patent ID: 7255373

Claim:
A retaining device for a pipe coupling comprising: a radially deformable housing having an internal bore adapted to receive a pipe therein, said internal bore having an internal surface that includes a plurality of outwardly extending first projections; and a radially deformable gripping member having longitudinal and parallel axes, and first and second surfaces, said first surface being matingly similar to said housing internal surface, said gripping member including a plurality of apertures adapted to receive said outwardly extending first projections when said gripping member is disposed in said housing internal bore, said gripping member further including a plurality of burst hole projections that extend outwardly from said second surface, each of said burst hole projections having a plurality of walls, at least one of said walls having an orientation that is not parallel to said longitudinal and parallel axes of said gripping member, whereby said burst hole projections substantially restrict longitudinal and rotational movement of said pipe when engaged thereto.