Abstract: A remote-controlled motor-driven drum is provided to wind and unwind a cord which holds a self-balancing sign carrier. The sign carrier, which has telescoping rails, is adjustable in width. Its center rail includes two sheaves to receive the cord and lead it from the drum back to an end secured to the ceiling. Thus, rotation of the drum serves to raise and lower the sign carrier and a sign carried by it. The sheaves on the carrier not only allow it to be raised and lowered, but also serve to make the unit self-balancing
The user attaches a sign to the carrier when it is in its lowered position and then raises the sign and carrier to the ceiling. The motor, which is reversible, is remotely controlled either by wires leading between the motor and a switch or by radio control (with a control similar to that used on a garage door).
Type:
Grant
Filed:
June 23, 1998
Date of Patent:
March 16, 2004
Assignees:
Mechtronics Corporation
Inventors:
Christopher S. Anderson, Louis J. Falcone, Arthur L. Torrence, Cary A. Cieciuch, Anthony C. Squitieri, Donna M. Stearns