Patent ID: 8060984

Claim:
A spiral rod extender for use on a pretension spiral rod window balance comprising a spiral rod containment tube having a second end for fastening to a window frame and a first end and a spiral rod, the spiral rod having a first end extending from the first end of the spiral rod containment tube and a second end, the spiral rod extender comprising: an elongated structural support member having a first end removably connected to the first end of the spiral rod and a second end and a length therebetween; the length of the elongated structural support member being sufficient such that when the spiral rod window balance with the spiral rod extender attached to the first end of the spiral rod is located in a jamb channel of a window frame with a sash installed, and the second end of the spiral rod is in position for fastening to a wall of the jamb channel, the second end of the elongated structural support member is exposed in the jamb channel; and an elongated blade spring having a first end and a second end, the second end of the elongated blade spring permanently secured in proximity to the second end of the elongated structural support member.