US Patent 11885113 Drain system for use with a tile floor

A drain system includes a drain cover positionable over a drain opening in a floor. The drain cover has a sidewall extending about a periphery of the drain cover and a release surface on the sidewall tapering or sloping inwardly toward a bottom of the drain cover. The release surface is arranged to interface with a support frame configured to support and position the drain cover over the drain opening and reduce frictional and shear forces between the drain cover and the support frame during removal of the drain cover from the support frame.