US Patent 9750155 Adaptive information handling system rack rail mount

A rail adjustable mount adjusts a rail to support information handling system chassis with different depths in racks of different depths. The adjustable mount couples to a rack front with a sliding portion extending into the rack interior. The adjustable mount sliding portion slidingly engages a guide of the rail to allow adjustment of the rail relative to the rack so that a rail fits into a rack having a depth that is greater than the length of the rail's housing. A floating portion of the rail supports the rail at the rear of the rack and allows the rail position to float relative to the rear of the rack. A biasing device of the adjustable mount biases the rail towards the front of the rack to aid full extension and retraction of the rail at the rack.