Patent ID: 7416168

Claim:
A telescopic motorized lifting device for lifting prizes and such comprising: a prize support disc; a band spool; a band clamp; a band spool housing; a plurality of band guide support bearings; at least two telescopic lift tubes wherein said telescopic lift tubes are concentrically disposed to allow lateral relative telescopic displacement about their longitudinal axes, each tube having an upper end and a lower end with the outermost disposed tube lower end affixed to said band spool housing and the innermost tube upper end affixed to said prize support disc; telescopic lift tube bearings and spacers wherein said bearings and spacers are disposed on said telescopic lift tubes and said upper ends to slidably engage adjacent telescopic lift tubes and provide radial guidance to adjacent lift tubes during extension and retraction; a prize lift band wherein said band is peripherally disposed upon said band spool with one end of said band retained thereto and the other end internally affixed to the upper end of said innermost telescopic lift tube and retained thereto by means of said band clamp; a motor drive subassembly wherein said motor drive embodies a motor shaft that is concentrically affixed to said band spool and supported by rotational bearings to permit rotational movement of said band spool whereby when said motor drive is commanded to a desired position, said prize lift band is extended or retracted within said telescopic lift tubes thereby extending or retracting said telescopic lift tube or tubes to elevate or lower said prize support disc; and a positional encoder, wherein said encoder is disposed upon the motor shaft of said motor drive subassembly to provide positional feedback of said motor shaft.