Patent ID: 7556464

Claim:
A two-way drywall lift overload protection system, comprising: a telescoping drywall lifter to lift and lower a load, wherein said telescoping drywall lifter includes a plurality of legs, a lower lifting member, a plurality of telescoping lifting members extending upwardly from said lower lifting member and an upper support to support said load; a winch attached to said telescoping drywall lifter; a brake unit connected to said winch; a slip clutch mechanically connected to said telescoping drywall lifter to selectively extend and retract said lower lifting member and said plurality of telescoping lifting members; and a main elongated member connected between said winch and said slip clutch; wherein said winch includes a drive sprocket connected to said main elongated member and wherein said slip clutch includes a secondary sprocket connected to said main elongated member; wherein said slip clutch is comprised of a pair of friction members on opposing sides of said secondary sprocket and a pair of plates positioned on opposite sides of said pair of friction members.