Abstract: A toilet includes a bowl having a vertically-elongated jet orifice near a top of the bowl that is designed to introduce flush water into the bowl from an interior water channel through a surface of an inner wall of the bowl, such that the flush water is directed around the inner wall of the bowl to wash the inner wall. The toilet also includes a shelf for directing the flush water. The toilet is a gravity-fed toilet that does not include an overhanging rim.

Abstract: One embodiment of the present application relates to a water tank for a toilet. The water tank includes a first chamber comprising an orifice for connecting to a toilet bowl. The water tank further includes a free-floating member within the first chamber that is not coupled to any other component and that is configured to selectively engage with and disengage from the orifice to selectively block or allow a flow of water through the orifice. The free-floating member can be selectively disengaged from the orifice via an actuator or a differential pressure within the water tank.

Abstract: A toilet comprising a tank having a bottom, a bowl, and an attachment assembly configured to secure the bottom of the tank to the bowl. The attachment assembly includes a mounting bracket having at least three mounting locations spaced apart around an opening, a valve configured to fluidly connect the tank and the bowl, the valve being configured to engage the bottom of the tank and the opening in the mounting bracket, a valve nut configured to couple to the valve to secure the mounting bracket between the valve nut and the tank, and at least three fasteners configured to secure the mounting bracket to the bowl. The at least three fasteners are disposed external to the tank and couple the tank to the bowl without directly engaging the tank.