Patent ID: 7784761

Claim:
An umbrella base assembly comprising: a base comprising a recess and at least one channel in the recess; a coupler having a sleeve extending along a longitudinal axis and configured to receive an umbrella pole, the coupler having an outer surface having a fixed portion located at a first radial distance from the longitudinal axis and at least one movable protrusion coupled with a movable portion of said outer surface, the protrusion movable from a first position disposed radially outward from the fixed portion of the outer surface to a second position at least partially radially inward from the fixed portion of the outer surface; a first clamping mechanism for preventing rotation of the coupler relative to the base, the first clamping mechanism comprising the at least one channel in the base and the at least one movable protrusion, the first clamping mechanism being actuated by inserting the umbrella pole into the sleeve to a position adjacent to the at least one movable protrusion; and a second clamping mechanism for preventing rotation of the umbrella pole relative to the coupler, the second clamping mechanism comprising a collar and a wedge member positionable at least partially within the collar, the second clamping mechanism being actuated by advancing the collar into engagement with the wedge member such that pressure is applied to the wedge member.