Patent ID: 7748666

Claim:
An adjustable support apparatus for supporting a user device, comprising: a first endcap having a first section and a second section, the first section being adapted for engagement with a support surface; a second endcap having a first section and a second section, the first section being adapted for engagement with the user device; a middle cap disposed between the first and second endcaps, the middle cap having a first side and a second side; a first arm member having a first end coupled to the second section of the first endcap and a second end coupled to the first side of the middle cap; a second arm member having a first end coupled to the second side of the middle cap and a second end coupled to the second section of the second endcap; a first variable force clevis coupled to the first arm member and to a first extension and retraction device therein for dynamically varying a balancing force provided by the first extension and retraction device; and a second variable force clevis coupled to the second arm member and to a second extension and retraction device therein for dynamically varying a balancing force provided by the second extension and retraction device; wherein the first arm member includes a pair of channel members operable to move relative to one another as the first arm member's position changes; wherein the first variable force clevis has a first end coupled to a first one of the channel members of the first arm member, a second end coupled to a second one of the channel members of the first arm member, and the first variable force clevis is operable to rotate within the first arm member as the first and second channel members thereof move relative to one another; wherein the second arm member includes a pair of channel members operable to move relative to one another as the second arm member's position changes; wherein the second variable force clevis has a first end coupled to a first one of the channel members of the second arm member, a second end coupled to a second one of the channel members of the second arm member, and the second variable force clevis is operable to rotate within the second arm member as the first and second channel members thereof move relative to one another; wherein one of the first and second variable force clevises includes a body member having a pair of arm members thereon, a respective one of the extension and retraction devices having a first end coupled to the pair of arm members; wherein the pair of arm members are disposed relative to a longitudinal portion of the respective variable force clevis at an angle of between 115 degrees and 150 degrees.