Patent ID: 6663065
Filing Date: 2003-12-16
Classification: B66C,F16M

Abstract:
A portable boom for use with a wooden upright, said boom comprising:a frame extending from a proximal to a distal end and having a channel therein; a support having a proximal end and a distal end, and said support extending from within the channel of the frame and having a mount thereon, said support locatable a plurality of positions within the channel to position the proximal end of the support at a plurality of distances from the distal end of the frame; a stop movably connected to a distal end of the frame, said stop configured to contact the wooden upright in an installed configuration; an arm connected to the frame and extending a distance above the frame at the distal end of the frame; a beam connecting a top portion of the arm to a proximal portion of the frame; a shoulder extending substantially the length of the frame along a top of the frame; and a retaining member connecting an upper portion of the arm to the wooden upright in the installed configuration wherein the upper portion of the arm is located above the stop and the retaining member extends from the arm about the wooden upright and back to the arm and the arm spaced from the wooden upright, wherein movement of the stop upward and away from the wooden upright rotates the top portion of the arm toward the wooden upright thereby loosening the retaining member allowing adjustment of the elevation of the portable boom relative to the wooden upright.