Patent ID: 8894324

Claim:
A drainage apparatus for providing a transition from a first surface to a second surface, the apparatus comprising: a drainage channel positioned between the first surface and the second surface, wherein the first surface and the second surface are separate from the drainage channel; and a grate for covering said drainage channel, said grate having one or more openings structured to allow a liquid to pass therethrough and into said drainage channel, wherein said grate comprises a first horizontally planar portion and a second horizontally planar portion and a generally vertical third portion extending between said first horizontally planar portion and said second horizontally planar portion, said grate being structured so that said first horizontally planar portion of said grate is positioned at a first level substantially flush with the first surface, and so that said second horizontally planar portion of said grate is positioned at a second level substantially flush with the second surface, and wherein said second level is displaced vertically from and lower than said first level.