Patent ID: 7484331
Filing Date: 2009-02-03
Classification: E05D,E05Y

Abstract:
1. A panel movement system comprising: top and bottom rails comprising racks with registration teeth along their lengths; top and bottom rail attachments movably attached to respective ones of the rails for lateral movement along lengths of the rails, wherein each rail attachment comprises a rotatable gear engaging the registration teeth on respective ones of the rails; and a gear movement synchronization system connecting the rotatable gear of the top rail attachment to the rotatable gear of the bottom rail attachment such that the top and bottom rail attachments move along the rails in unison, and wherein the top and bottom rail attachments are adapted to have a panel connected therebetween, wherein at least one of the rail attachments comprises top and bottom rollers located on opposite sides of one of the rails and the top and bottom rollers comprise two top rollers and two bottom rollers for each rail.