Patent ID: 8876230

Claim:
A drawer retainer mechanism attached to a drawer slide assembly comprising: a frame having a plurality of flanges; a threaded hole through a first flange of the plurality of flanges; a housing having an interior formed by a chamber; the housing connected to the frame; a post having a threaded section engaged with the threaded hole; the housing further comprising a first hole leading to the chamber through which the post extends; the housing further comprising an outlet having a stepped recess wherein the outlet is axially aligned with the first hole; the housing further comprising a first guide ridge and a second guide ridge; a piston seated in the chamber; the piston having a body section and a rounded protrusion extending through the outlet and between a second flange of the plurality of flanges and a third flange of the plurality of flanges; the piston further comprises a second hole in the body section, a first channel and a second channel flanking the second hole, where axes of the first channel and the second channel are generally parallel with an axis of the second hole, and wherein the first channel engages the first guide ridge and the second channel engages the second guide ridge, and wherein the post extends into the second hole; and, a helical spring surrounding the post and biasing the threaded section and the piston.