US Patent:
20130037686, Feb 14, 2013
Inventors:
Ralph Cichetti - Montrose CA, US
David D. MacMurtry - North Hollywood CA, US
Quang N. Truong - Rosemead CA, US
Risto M. Salo - Valencia CA, US
Amanda Uhlein - Wayne NJ, US
International Classification:
F16M 11/28
F16M 13/02
US Classification:
248542, 248158, 2481258, 248404
Abstract:
A lift for raising and lowering a backdrop is provided. The lift includes: a base including at least three legs; a tower boom extending substantially vertically from the base and including top, middle, and bottom telescoping sections, wherein the tower boom is capable of telescoping from a fully retracted position to a fully extended position; and a post extending substantially vertically from the tower boom, wherein the post is detachable from the tower boom at a lower end of the post and attachable to a truss adapted for attaching to a backdrop at an upper end of the post, wherein a minimum height of the tower boom in the fully retracted position is less than about 35% of a maximum height of the tower boom and post, when the tower boom is in the fully extended position.