Patent ID: 7370740

Claim:
A retractable handle assembly for a luggage case, the handle assembly including a pair of elongate substantially parallel handle units and a handle grip interconnected the handle units, the handle grip having a push button, either handle unit comprising: a support tube fixed at a bottom of the luggage case; a sliding tube connected to one end of the handle grip, the sliding tube being slidably disposed in the support tube; locking means disposed in a lower portion of the sliding tube; a connecting rod interconnected the push button and the locking means; and damping means floatably disposed between a lower portion of the sliding tube and a bottom of the support tube, wherein the damping means comprises a hollow upright plunger, a spring, a piston rod, a sealing ring biased by the spring thereunder, and a top cap; wherein the damping means is operative to damply extend upward a predetermined distance in a substantially stable speed by pressing the push button in a pulling operation of the handle assembly.