Patent ID: 7275733
Filing Date: 2007-10-02
Classification: A63J,B66D

Abstract:
1. A compact drive for a counterweight balanced rigging system for raising and lowering a first load of a first predetermined maximum weight and a second load of second predetermined maximum weight, comprising: a first winch having a rating of at least one half the first predetermined weight, connected to an axle having a driven gear and an idler gear; a second winch having a rating of at least one half the second predetermined weight, connected to an axle having a driven gear and an idler gear; a first arbor having counterweights positioned thereon, wherein the weight of the counterweights is about one half of the first predetermined maximum weight; a second arbor having counterweights positioned thereon, wherein the weight of the counterweights is about one half of the second predetermined maximum weight; a first lift line interconnecting said first arbor to the first load; a second lift line interconnecting said second arbor to the second load; a first control line connected to said first arbor and positioned in movingly and lockingly engaged relation to said first winch's driven gear and said second winch's idler gear; a second control line connected to said second arbor and positioned in movingly and lockingly engaged relation to said second winch's driven gear and said first winch's idler gear.