Patent ID: 8820336

Claim:
An umbrella holder system ( 100 ) with ball joint for shade angle adjustment, the system comprising: (a) an umbrella ( 110 ) with a straight handle ( 120 ), wherein the straight handle has a lower end ( 122 ); (b) a ball-joint top ( 180 ) comprising a hollow semi-sphere lid ( 182 ) with a side wall curvature ( 420 ) and a tubular bracelet ( 181 ) disposed uprightly on the semi-sphere lid ( 182 ), wherein the lid ( 182 ) has a downward opening ( 187 ), wherein the tubular bracelet ( 181 ) has an upper opening ( 185 ) and a lower opening ( 186 ), wherein the upper opening ( 185 ) is configured to receive the straight handle ( 120 ), wherein the lower opening ( 186 ) is threaded and connects to the lid opening ( 187 ); (c) a hollow semi-sphere ball-joint housing ( 190 ) with a joint ball ( 191 ) residing securely and pivotably within the ball-joint housing ( 190 ), wherein the ball joint housing ( 190 ) comprises an upper lip ( 400 ) disposed on a top end ( 410 ) thereon, wherein a threaded rod ( 192 ) is disposed uprightly on the joint ball ( 191 ), wherein the threaded rod ( 192 ) is configured to removably engage the threaded lower opening ( 186 ), wherein the ball-joint housing ( 190 ) is configured to be enclosed snugly by the semi-sphere lid ( 182 ) when the threaded rod ( 192 ) is threaded into the threaded lower opening ( 186 ), wherein upon rotating the threaded rod ( 192 ) into the lower opening ( 186 ), the upper lip ( 400 ) is compressed against and scrapes the side wall curvature ( 420 ) of the lid ( 182 ), wherein the upper lip ( 400 ) jams into and sticks tightly against the side wall curvature ( 420 ) of the lid ( 182 ) to immobilize movement of the ball-joint top ( 180 ) and the ball- joint housing ( 190 ); (d) a U-shaped base ( 140 ) with a first side arm ( 141 ), a second side arm ( 142 ) and a middle arm ( 143 ), wherein the ball-joint housing ( 190 ) is disposed on the middle arm ( 143 ), wherein the second side arm ( 142 ) has a threaded hole ( 144 ) to engage a threaded screw ( 146 ) having a first thread end ( 146 a ) and a second thread end ( 146 b ), wherein an adjustment handle ( 146 ) is disposed on the first thread end ( 146 a ) and a squeezing plate ( 147 ) is rotatably disposed on the second thread end ( 146 b ), wherein the squeezing plate ( 147 ) is parallel to the first arm ( 141 ), wherein the handle is rotatable to push the squeezing plate ( 147 ) to firmly sandwich an external support base ( 200 ) between the squeezing plate ( 147 ) and the first arm ( 141 ).