US Patent 7364244 User-controllable latching carrier rail system

A system rack configured to house rack-mount modules comprising a support structure; a rack-mount module slidingly mounted within the support structure; a carrier rail system slidingly supporting the module and comprising a pair of linear slides each secured to the support structure on opposing sides of the module, each linear slide comprising a stationary slide rail fixed to the support structure and one movable slide rail linear translatable relative to the stationary slide rail and fixed to the module; and a user-controllable latching mechanism operatively coupled to the module to releasably restrain the module in at least one position relative to the support structure.