Patent ID: 7703175

Claim:
A curl spring assembly that includes at least one curl spring disposed within a jamb channel having a slot, the assembly comprising: a spring mount fixed within the jamb channel to support a curl spring in an operative position within the jamb channel; a protective cover separate from the spring mount; the protective cover being releasably connected to and removable from the spring mount; the protective cover having a slot cover portion and a channel cover portion; the slot cover portion being formed as a strip wider than the slot in the jamb channel and arranged outside the jamb channel on a sash side of the jamb channel to cover the slot in the region of the spring mount and the curl spring; the channel cover portion extending from the slot cover portion into the jamb channel in a region above the curl spring; and the channel cover portion extending transversely of the channel to block dirt from falling downward within the channel onto the spring assembly.