Patent ID: 8950690
Filing Date: 2015-02-10
Classification: A61H,E03C,E03F,E04H,Y10T

Abstract:
1. An anti-entrapment fail safe drain comprising: a drain sump with an influent opening; a drain cover for partially covering the influent opening of the drain sump, the drain cover having openings and a top surface; a pressurized supply line; and a nozzle assembly in fluid communication with the pressurized supply line and mounted within the drain sump such that a portion of the nozzle assembly extends through the drain cover and protrudes above the top surface of the drain cover; wherein the nozzle assembly is for directing a pressurized liquid in a pattern over a surface of the drain cover when the drain cover and the nozzle are immersed in the liquid, such that a portion of the liquid above the pattern or objects suspended in standing liquid can not be pulled directly toward the drain cover through a drain cover opening.