Patent ID: 7753177

Claim:
A wheel chock assembly comprising: a base member having an axis extending from a top end to a bottom end the base member including a main member and a handle, the main member being sized to be received in a bottom opening of the handle and a cord being secured to the main member, upper movement of the cord draws the main member within the handle to extend first and second support members outward and downward movement of the cord withdraws tile main member from the handle to retract the support members inward; said first and second support members, each support member having upper and lower ends the upper ends being pivotally and slidably engaged with respect to the base member, the upper ends of the support members being pivotally secured to a slide-bar, the slide-bar extending through a lower end of the handle between the upper ends of the support members, the lower ends of the support members being secured to first and second inner links having inside and outside ends the inside ends being pivotally secured by a torsion spring; first and second wheel chocks mounted with respect to the respective lower end of the first and second support members; and an adjustment mechanism including said cord mounted with respect to the base member and operatively engaged to the first and second support members for axial movement of the upper ends of the support members with respect to the base member, whereby the first and second support members being extended and retracted between limits to permit a range of spacing between the wheel chocks for the gripping of a wheel on a cart between the wheel chocks.