Patent ID: 7614093

Claim:
A vertically-actuable cover assembly for a structure comprising: a cover; and two or more actuation members for supporting the cover, the two or more actuation members being actuable between a lowered position atop the structure to an elevated position above the structure so as to act as a roof thereover, wherein the two or more actuation members further comprise: a first lift structure mounted on a base fixed relative to the structure; a second lift structure operatively connected to the first lift structure and actuable to be raised and lowered relative thereto; a third upper lift structure operatively connected to the second lift structure connected to the cover for raising and lowering the cover; a rotatable guide supported adjacent a top end of the second lift structure; a first tension member connected between the first structure and extending about the rotatable guide for connection to a bottom end of the third lift structure; and drive means for driving the second lift structure to be lifted and lowered relative to the first lift structure, wherein the rotatable guide is lifted and lowered by the second lift structure so as to passively cause the first tension member to lift the third upper lift structure relative to the second lift structure so as to lift the cover.