Articulated Mounting Systems And Bearings For Joints Thereof

4 The rotational bearing of claim 1, wherein

• the indexed bearing member comprises a disk;
• the array of detent structures comprises a plurality of recessed dimples defined in the surface of the disk arranged in a circle;
• and
• the elastic retention structure comprises a spring plunger with a ball nose aligned to interface with the recessed dimples.

An articulated mounting system comprising

• a first member;
• a second member connected with the first member;
• and
• a bearing means interposed at a joint between the first member and the second member, wherein
• the bearing means allows the first member to rotate about the joint with respect to the second member without loosening the joint;
• and
• the bearing means resists the force of gravity on the articulated mounting system causing rotational drift of the first member about the joint without tightening the joint.

A vertical mounting system for a display device comprising

• a leveling plate adapted to attach to a ceiling;
• an outer tube defining a bore attached to and extending downward from the leveling plate;
• an inner tube of an outer diameter less than an inner diameter of the outer tube defined by the bore, wherein the inner tube slides within the bore of the outer tube;
• and
• an attachment means for adjustably securing the inner tube at a fixed position within the outer tube.