Abstract: A collapsible musical instrument stand is described which is light-weight and portable. The stand includes an upright spine with spaced-apart legs. A yoke member is pivotably attached to the upper end of the spine. A brace is attached between the legs and is pivotable between open and closed positions.

Abstract: A boom assembly has an upright stand with a vertical hollow post and on top of which is mounted an elongated hollow boom adjustable in orientation in both vertical and horizontal directions. A linear extention member for the boom is also in the form of a hollow tube. The stand includes a plurality of legs each in the form of a hollow tube and there are a plurality of foot elements such as casters. The different parts of the assembly are secured together by couplings that preferably are the same in each case. Such couplings include a hollow body with an exterior surface of a size and shape to be inserted within an adjacent hollow tube. A pair of laterally-opposite slots continue longitudinally inward from one end of the body. A lateral spreader is of a size and shape to be located within that one end of the body. A lever has one end portion inserted within the spreader to effect spreading thereof upon lateral deflection of the other end of the lever.

Abstract: Portable, collapsible, adjustable support apparatus is described comprising first and second tubular members which are telescopically connected. A base member including pivoting legs is preferably attached to the lower end of the first tubular member. The second tubular member includes engagement means which is adapted to releasably engage the interior surface of the first tubular member. Release means carried by the second tubular member may be actuated by one hand to raise or lower the second tubular member with respect to the first tubular member. A locking system is also described which is adapted to releasably lock pivotable leg members to a base member. The leg members may be locked in either an upward or downward position.

Abstract: A pair of spaced poles are each telescopically adjustable in height and include respective clamps lockable to fix that heighth. A net has side margins and top margins. A rope secured to the top margin is securable between the tops of the poles. A first pair of ties are secured individually at one end to an upper portion of the side margin and are secured individually at the other end to a corresponding upper end of a respective one of the poles. A second pair of ties similarly are secured individually at one end to the other side margin and to the corresponding intermediate portion of a respective pole. All ties are secured in a manner as to induce resilient tension therein. A plurality of lines each are selectively adjustable in length, respective pairs of those lines diverging downwardly and outwardly from the top of corresponding ones of the poles into securement with an underlying substrate.