Patent ID: 7409807

Claim:
Apparatus for forming a concrete structure in an essentially vertical position and lowering the concrete structure to a generally horizontal position, the apparatus comprising: a structure forming apparatus comprising: a yoke configured to move upward along a climb rod to form the concrete structure in the essentially vertical position on a first support; concrete forms configured to form the concrete structure in at least one of a jump-from mode or a slip-form mode; a plurality of truss modules moveably supporting the concrete forms by the yoke; and a structure lowering apparatus comprising: a boom defined by a boom first end and a boom second end, the boom configured to be pivotably supported at the boom first end by a second support which is distal form the first support; and a lowering jack which engages and is configured to move along the boom, and which is configured to be pivotably attached to the yoke of the structure forming apparatus.