US Patent 7621381 Fluid damper

A damper including a first fluid conduit in fluid communication with a second fluid conduit via a regulator, a first movable member disposed within the first fluid conduit, a second movable member disposed within the second fluid conduit, and a fluid residing between the first and second movable members. The regulator may include one or more orifices each having a valve disposed therein, wherein the valves are moveable between a seated position and an unseated position with respect to the orifices and are spring biased toward the unseated position. The damper may be spring biased such that when it is mounted on a stationary rail of a drawer slide, and engages with a movable rail of the drawer slide, it urges the drawer slide toward a closed position and dampens the closing motion of the drawer slide.