Patent ID: 7748431

Claim:
A door system, comprising: a track defining a channel; a panel movable between an open position and a closed position, wherein the panel includes a lateral edge that is adjacent to the track when the panel is in the closed position; a drive strip coupled to the lateral edge of the panel and extending into the channel when the panel is in the closed position; a plurality of projections disposed on the drive strip such that the plurality of projections are positioned within the channel when the panel is in the closed position; a drive gear that engages the plurality of projections without extending through the drive strip to move the panel between the closed position and the open position; and a reinforcing strip coupled to the panel and the drive strip, the reinforcing strip extending in a lengthwise direction generally parallel to the track when the panel is in the closed position, and the reinforcing strip having greater resistance to lengthwise compression than does the drive strip.