Patent ID: 7743555

Claim:
A window regulator assembly comprising: first and second rails ( 112 A, 112 B), each of said first and second rails extending between a first end and a second end thereof; first and second lift plates ( 116 A, 116 B) respectively slidingly mounted to said first and second rails; at least one primary cable ( 132 A, 132 B); a secondary cable; a first guide pulley mounted to said first end of said first rail; a second guide pulley mounted to said second end of said second rail; a third guide pulley mounted to said second end of said first rail; a fourth guide pulley mounted to said first end of said second rail; a drum ( 144 ); a first lift pulley mounted to said first lift plate; a second lift pulley mounted to said second lift plate; wherein said at least one primary cable has a first end anchored ( 134 A) directly to said first rail near said first end of said first rail and wound about said first lift pulley ( 136 A) and thence routed about said first guide pulley ( 140 A) and then operatively engaging said drum ( 144 ), and a second end anchored ( 134 B) directly to said second rail near said second end of said second rail and wound about said second lift pulley ( 136 B) and thence routed about said second guide pulley ( 140 B) and then operatively engaging said drum ( 144 ), and wherein said secondary cable is anchored to said first lift plate and then routed about said third guide pulley and thence routed about said fourth guide pulley and then anchored to said second lift plate interconnecting said first and second lift plates; whereby operative movement of said drum in a first sense tensions said at least one primary cable to move said first and second lift plates towards said first ends of said first and second rails, and operative movement of said drum in a second sense, opposite said first sense, tensions said at least one primary cable to move said first and second lift plates towards said second ends of said first and second rails.