Patent ID: 8919419

Claim:
A counterbalanced motorized shade system comprising: a shade roll extending a length from a first end to a second end, the shade roll having a hollow interior; a shade connected to the shade roll; a motor located within the hollow interior of the shade roll; a drive shaft connected with the motor and the shade roll, the drive shaft positioned within the hollow interior of the shade roll; a torsion spring extending a length from a first end to a second end, the torsion spring positioned within the shade roll; wherein the torsion spring is operatively connected with the motor on the first end, and the torsion spring is operatively connected with the hollow interior of the shade roll on the second end; wherein the torsion spring is positioned around the drive shaft; wherein the torsion spring is operably connected on the second end with a drive cone, wherein the drive cone is movable along a length of the hollow interior of the shade roll; a plurality of batteries positioned within the hollow interior of the shade roll and electrically connected to the motor; wherein the torsion spring is not positioned around the plurality of batteries; wherein the motor rotates the drive shaft which rotates the shade roll thereby opening or closing the shade connected to the shade roll; and wherein when the motor rotates the drive shaft an end of the torsion spring rotates with the shade roll as an end of the torsion spring remains stationary.